Add extracted source directory and README navigation

extracted-source/node_modules/@smithy/util-stream/dist-cjs/ByteArrayCollector.js

@@ -0,0 +1,36 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.ByteArrayCollector = void 0;
+class ByteArrayCollector {
+    allocByteArray;
+    byteLength = 0;
+    byteArrays = [];
+    constructor(allocByteArray) {
+        this.allocByteArray = allocByteArray;
+    }
+    push(byteArray) {
+        this.byteArrays.push(byteArray);
+        this.byteLength += byteArray.byteLength;
+    }
+    flush() {
+        if (this.byteArrays.length === 1) {
+            const bytes = this.byteArrays[0];
+            this.reset();
+            return bytes;
+        }
+        const aggregation = this.allocByteArray(this.byteLength);
+        let cursor = 0;
+        for (let i = 0; i < this.byteArrays.length; ++i) {
+            const bytes = this.byteArrays[i];
+            aggregation.set(bytes, cursor);
+            cursor += bytes.byteLength;
+        }
+        this.reset();
+        return aggregation;
+    }
+    reset() {
+        this.byteArrays = [];
+        this.byteLength = 0;
+    }
+}
+exports.ByteArrayCollector = ByteArrayCollector;

extracted-source/node_modules/@smithy/util-stream/dist-cjs/checksum/ChecksumStream.browser.js

@@ -0,0 +1,7 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.ChecksumStream = void 0;
+const ReadableStreamRef = typeof ReadableStream === "function" ? ReadableStream : function () { };
+class ChecksumStream extends ReadableStreamRef {
+}
+exports.ChecksumStream = ChecksumStream;

extracted-source/node_modules/@smithy/util-stream/dist-cjs/checksum/ChecksumStream.js

@@ -0,0 +1,53 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.ChecksumStream = void 0;
+const util_base64_1 = require("@smithy/util-base64");
+const stream_1 = require("stream");
+class ChecksumStream extends stream_1.Duplex {
+    expectedChecksum;
+    checksumSourceLocation;
+    checksum;
+    source;
+    base64Encoder;
+    constructor({ expectedChecksum, checksum, source, checksumSourceLocation, base64Encoder, }) {
+        super();
+        if (typeof source.pipe === "function") {
+            this.source = source;
+        }
+        else {
+            throw new Error(`@smithy/util-stream: unsupported source type ${source?.constructor?.name ?? source} in ChecksumStream.`);
+        }
+        this.base64Encoder = base64Encoder ?? util_base64_1.toBase64;
+        this.expectedChecksum = expectedChecksum;
+        this.checksum = checksum;
+        this.checksumSourceLocation = checksumSourceLocation;
+        this.source.pipe(this);
+    }
+    _read(size) { }
+    _write(chunk, encoding, callback) {
+        try {
+            this.checksum.update(chunk);
+            this.push(chunk);
+        }
+        catch (e) {
+            return callback(e);
+        }
+        return callback();
+    }
+    async _final(callback) {
+        try {
+            const digest = await this.checksum.digest();
+            const received = this.base64Encoder(digest);
+            if (this.expectedChecksum !== received) {
+                return callback(new Error(`Checksum mismatch: expected "${this.expectedChecksum}" but received "${received}"` +
+                    ` in response header "${this.checksumSourceLocation}".`));
+            }
+        }
+        catch (e) {
+            return callback(e);
+        }
+        this.push(null);
+        return callback();
+    }
+}
+exports.ChecksumStream = ChecksumStream;

extracted-source/node_modules/@smithy/util-stream/dist-cjs/checksum/createChecksumStream.browser.js

@@ -0,0 +1,39 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.createChecksumStream = void 0;
+const util_base64_1 = require("@smithy/util-base64");
+const stream_type_check_1 = require("../stream-type-check");
+const ChecksumStream_browser_1 = require("./ChecksumStream.browser");
+const createChecksumStream = ({ expectedChecksum, checksum, source, checksumSourceLocation, base64Encoder, }) => {
+    if (!(0, stream_type_check_1.isReadableStream)(source)) {
+        throw new Error(`@smithy/util-stream: unsupported source type ${source?.constructor?.name ?? source} in ChecksumStream.`);
+    }
+    const encoder = base64Encoder ?? util_base64_1.toBase64;
+    if (typeof TransformStream !== "function") {
+        throw new Error("@smithy/util-stream: unable to instantiate ChecksumStream because API unavailable: ReadableStream/TransformStream.");
+    }
+    const transform = new TransformStream({
+        start() { },
+        async transform(chunk, controller) {
+            checksum.update(chunk);
+            controller.enqueue(chunk);
+        },
+        async flush(controller) {
+            const digest = await checksum.digest();
+            const received = encoder(digest);
+            if (expectedChecksum !== received) {
+                const error = new Error(`Checksum mismatch: expected "${expectedChecksum}" but received "${received}"` +
+                    ` in response header "${checksumSourceLocation}".`);
+                controller.error(error);
+            }
+            else {
+                controller.terminate();
+            }
+        },
+    });
+    source.pipeThrough(transform);
+    const readable = transform.readable;
+    Object.setPrototypeOf(readable, ChecksumStream_browser_1.ChecksumStream.prototype);
+    return readable;
+};
+exports.createChecksumStream = createChecksumStream;

extracted-source/node_modules/@smithy/util-stream/dist-cjs/checksum/createChecksumStream.js

@@ -0,0 +1,12 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.createChecksumStream = createChecksumStream;
+const stream_type_check_1 = require("../stream-type-check");
+const ChecksumStream_1 = require("./ChecksumStream");
+const createChecksumStream_browser_1 = require("./createChecksumStream.browser");
+function createChecksumStream(init) {
+    if (typeof ReadableStream === "function" && (0, stream_type_check_1.isReadableStream)(init.source)) {
+        return (0, createChecksumStream_browser_1.createChecksumStream)(init);
+    }
+    return new ChecksumStream_1.ChecksumStream(init);
+}

extracted-source/node_modules/@smithy/util-stream/dist-cjs/createBufferedReadable.js

@@ -0,0 +1,60 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.createBufferedReadable = createBufferedReadable;
+const node_stream_1 = require("node:stream");
+const ByteArrayCollector_1 = require("./ByteArrayCollector");
+const createBufferedReadableStream_1 = require("./createBufferedReadableStream");
+const stream_type_check_1 = require("./stream-type-check");
+function createBufferedReadable(upstream, size, logger) {
+    if ((0, stream_type_check_1.isReadableStream)(upstream)) {
+        return (0, createBufferedReadableStream_1.createBufferedReadableStream)(upstream, size, logger);
+    }
+    const downstream = new node_stream_1.Readable({ read() { } });
+    let streamBufferingLoggedWarning = false;
+    let bytesSeen = 0;
+    const buffers = [
+        "",
+        new ByteArrayCollector_1.ByteArrayCollector((size) => new Uint8Array(size)),
+        new ByteArrayCollector_1.ByteArrayCollector((size) => Buffer.from(new Uint8Array(size))),
+    ];
+    let mode = -1;
+    upstream.on("data", (chunk) => {
+        const chunkMode = (0, createBufferedReadableStream_1.modeOf)(chunk, true);
+        if (mode !== chunkMode) {
+            if (mode >= 0) {
+                downstream.push((0, createBufferedReadableStream_1.flush)(buffers, mode));
+            }
+            mode = chunkMode;
+        }
+        if (mode === -1) {
+            downstream.push(chunk);
+            return;
+        }
+        const chunkSize = (0, createBufferedReadableStream_1.sizeOf)(chunk);
+        bytesSeen += chunkSize;
+        const bufferSize = (0, createBufferedReadableStream_1.sizeOf)(buffers[mode]);
+        if (chunkSize >= size && bufferSize === 0) {
+            downstream.push(chunk);
+        }
+        else {
+            const newSize = (0, createBufferedReadableStream_1.merge)(buffers, mode, chunk);
+            if (!streamBufferingLoggedWarning && bytesSeen > size * 2) {
+                streamBufferingLoggedWarning = true;
+                logger?.warn(`@smithy/util-stream - stream chunk size ${chunkSize} is below threshold of ${size}, automatically buffering.`);
+            }
+            if (newSize >= size) {
+                downstream.push((0, createBufferedReadableStream_1.flush)(buffers, mode));
+            }
+        }
+    });
+    upstream.on("end", () => {
+        if (mode !== -1) {
+            const remainder = (0, createBufferedReadableStream_1.flush)(buffers, mode);
+            if ((0, createBufferedReadableStream_1.sizeOf)(remainder) > 0) {
+                downstream.push(remainder);
+            }
+        }
+        downstream.push(null);
+    });
+    return downstream;
+}

extracted-source/node_modules/@smithy/util-stream/dist-cjs/createBufferedReadableStream.js

@@ -0,0 +1,103 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.createBufferedReadable = void 0;
+exports.createBufferedReadableStream = createBufferedReadableStream;
+exports.merge = merge;
+exports.flush = flush;
+exports.sizeOf = sizeOf;
+exports.modeOf = modeOf;
+const ByteArrayCollector_1 = require("./ByteArrayCollector");
+function createBufferedReadableStream(upstream, size, logger) {
+    const reader = upstream.getReader();
+    let streamBufferingLoggedWarning = false;
+    let bytesSeen = 0;
+    const buffers = ["", new ByteArrayCollector_1.ByteArrayCollector((size) => new Uint8Array(size))];
+    let mode = -1;
+    const pull = async (controller) => {
+        const { value, done } = await reader.read();
+        const chunk = value;
+        if (done) {
+            if (mode !== -1) {
+                const remainder = flush(buffers, mode);
+                if (sizeOf(remainder) > 0) {
+                    controller.enqueue(remainder);
+                }
+            }
+            controller.close();
+        }
+        else {
+            const chunkMode = modeOf(chunk, false);
+            if (mode !== chunkMode) {
+                if (mode >= 0) {
+                    controller.enqueue(flush(buffers, mode));
+                }
+                mode = chunkMode;
+            }
+            if (mode === -1) {
+                controller.enqueue(chunk);
+                return;
+            }
+            const chunkSize = sizeOf(chunk);
+            bytesSeen += chunkSize;
+            const bufferSize = sizeOf(buffers[mode]);
+            if (chunkSize >= size && bufferSize === 0) {
+                controller.enqueue(chunk);
+            }
+            else {
+                const newSize = merge(buffers, mode, chunk);
+                if (!streamBufferingLoggedWarning && bytesSeen > size * 2) {
+                    streamBufferingLoggedWarning = true;
+                    logger?.warn(`@smithy/util-stream - stream chunk size ${chunkSize} is below threshold of ${size}, automatically buffering.`);
+                }
+                if (newSize >= size) {
+                    controller.enqueue(flush(buffers, mode));
+                }
+                else {
+                    await pull(controller);
+                }
+            }
+        }
+    };
+    return new ReadableStream({
+        pull,
+    });
+}
+exports.createBufferedReadable = createBufferedReadableStream;
+function merge(buffers, mode, chunk) {
+    switch (mode) {
+        case 0:
+            buffers[0] += chunk;
+            return sizeOf(buffers[0]);
+        case 1:
+        case 2:
+            buffers[mode].push(chunk);
+            return sizeOf(buffers[mode]);
+    }
+}
+function flush(buffers, mode) {
+    switch (mode) {
+        case 0:
+            const s = buffers[0];
+            buffers[0] = "";
+            return s;
+        case 1:
+        case 2:
+            return buffers[mode].flush();
+    }
+    throw new Error(`@smithy/util-stream - invalid index ${mode} given to flush()`);
+}
+function sizeOf(chunk) {
+    return chunk?.byteLength ?? chunk?.length ?? 0;
+}
+function modeOf(chunk, allowBuffer = true) {
+    if (allowBuffer && typeof Buffer !== "undefined" && chunk instanceof Buffer) {
+        return 2;
+    }
+    if (chunk instanceof Uint8Array) {
+        return 1;
+    }
+    if (typeof chunk === "string") {
+        return 0;
+    }
+    return -1;
+}

extracted-source/node_modules/@smithy/util-stream/dist-cjs/getAwsChunkedEncodingStream.js

@@ -0,0 +1,30 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.getAwsChunkedEncodingStream = void 0;
+const stream_1 = require("stream");
+const getAwsChunkedEncodingStream = (readableStream, options) => {
+    const { base64Encoder, bodyLengthChecker, checksumAlgorithmFn, checksumLocationName, streamHasher } = options;
+    const checksumRequired = base64Encoder !== undefined &&
+        checksumAlgorithmFn !== undefined &&
+        checksumLocationName !== undefined &&
+        streamHasher !== undefined;
+    const digest = checksumRequired ? streamHasher(checksumAlgorithmFn, readableStream) : undefined;
+    const awsChunkedEncodingStream = new stream_1.Readable({ read: () => { } });
+    readableStream.on("data", (data) => {
+        const length = bodyLengthChecker(data) || 0;
+        awsChunkedEncodingStream.push(`${length.toString(16)}\r\n`);
+        awsChunkedEncodingStream.push(data);
+        awsChunkedEncodingStream.push("\r\n");
+    });
+    readableStream.on("end", async () => {
+        awsChunkedEncodingStream.push(`0\r\n`);
+        if (checksumRequired) {
+            const checksum = base64Encoder(await digest);
+            awsChunkedEncodingStream.push(`${checksumLocationName}:${checksum}\r\n`);
+            awsChunkedEncodingStream.push(`\r\n`);
+        }
+        awsChunkedEncodingStream.push(null);
+    });
+    return awsChunkedEncodingStream;
+};
+exports.getAwsChunkedEncodingStream = getAwsChunkedEncodingStream;

extracted-source/node_modules/@smithy/util-stream/dist-cjs/headStream.browser.js

@@ -0,0 +1,34 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.headStream = headStream;
+async function headStream(stream, bytes) {
+    let byteLengthCounter = 0;
+    const chunks = [];
+    const reader = stream.getReader();
+    let isDone = false;
+    while (!isDone) {
+        const { done, value } = await reader.read();
+        if (value) {
+            chunks.push(value);
+            byteLengthCounter += value?.byteLength ?? 0;
+        }
+        if (byteLengthCounter >= bytes) {
+            break;
+        }
+        isDone = done;
+    }
+    reader.releaseLock();
+    const collected = new Uint8Array(Math.min(bytes, byteLengthCounter));
+    let offset = 0;
+    for (const chunk of chunks) {
+        if (chunk.byteLength > collected.byteLength - offset) {
+            collected.set(chunk.subarray(0, collected.byteLength - offset), offset);
+            break;
+        }
+        else {
+            collected.set(chunk, offset);
+        }
+        offset += chunk.length;
+    }
+    return collected;
+}

extracted-source/node_modules/@smithy/util-stream/dist-cjs/headStream.js

@@ -0,0 +1,42 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.headStream = void 0;
+const stream_1 = require("stream");
+const headStream_browser_1 = require("./headStream.browser");
+const stream_type_check_1 = require("./stream-type-check");
+const headStream = (stream, bytes) => {
+    if ((0, stream_type_check_1.isReadableStream)(stream)) {
+        return (0, headStream_browser_1.headStream)(stream, bytes);
+    }
+    return new Promise((resolve, reject) => {
+        const collector = new Collector();
+        collector.limit = bytes;
+        stream.pipe(collector);
+        stream.on("error", (err) => {
+            collector.end();
+            reject(err);
+        });
+        collector.on("error", reject);
+        collector.on("finish", function () {
+            const bytes = new Uint8Array(Buffer.concat(this.buffers));
+            resolve(bytes);
+        });
+    });
+};
+exports.headStream = headStream;
+class Collector extends stream_1.Writable {
+    buffers = [];
+    limit = Infinity;
+    bytesBuffered = 0;
+    _write(chunk, encoding, callback) {
+        this.buffers.push(chunk);
+        this.bytesBuffered += chunk.byteLength ?? 0;
+        if (this.bytesBuffered >= this.limit) {
+            const excess = this.bytesBuffered - this.limit;
+            const tailBuffer = this.buffers[this.buffers.length - 1];
+            this.buffers[this.buffers.length - 1] = tailBuffer.subarray(0, tailBuffer.byteLength - excess);
+            this.emit("finish");
+        }
+        callback();
+    }
+}

extracted-source/node_modules/@smithy/util-stream/dist-cjs/index.js

@@ -0,0 +1,84 @@
+'use strict';
+
+var utilBase64 = require('@smithy/util-base64');
+var utilUtf8 = require('@smithy/util-utf8');
+var ChecksumStream = require('./checksum/ChecksumStream');
+var createChecksumStream = require('./checksum/createChecksumStream');
+var createBufferedReadable = require('./createBufferedReadable');
+var getAwsChunkedEncodingStream = require('./getAwsChunkedEncodingStream');
+var headStream = require('./headStream');
+var sdkStreamMixin = require('./sdk-stream-mixin');
+var splitStream = require('./splitStream');
+var streamTypeCheck = require('./stream-type-check');
+
+class Uint8ArrayBlobAdapter extends Uint8Array {
+    static fromString(source, encoding = "utf-8") {
+        if (typeof source === "string") {
+            if (encoding === "base64") {
+                return Uint8ArrayBlobAdapter.mutate(utilBase64.fromBase64(source));
+            }
+            return Uint8ArrayBlobAdapter.mutate(utilUtf8.fromUtf8(source));
+        }
+        throw new Error(`Unsupported conversion from ${typeof source} to Uint8ArrayBlobAdapter.`);
+    }
+    static mutate(source) {
+        Object.setPrototypeOf(source, Uint8ArrayBlobAdapter.prototype);
+        return source;
+    }
+    transformToString(encoding = "utf-8") {
+        if (encoding === "base64") {
+            return utilBase64.toBase64(this);
+        }
+        return utilUtf8.toUtf8(this);
+    }
+}
+
+exports.Uint8ArrayBlobAdapter = Uint8ArrayBlobAdapter;
+Object.keys(ChecksumStream).forEach(function (k) {
+    if (k !== 'default' && !Object.prototype.hasOwnProperty.call(exports, k)) Object.defineProperty(exports, k, {
+        enumerable: true,
+        get: function () { return ChecksumStream[k]; }
+    });
+});
+Object.keys(createChecksumStream).forEach(function (k) {
+    if (k !== 'default' && !Object.prototype.hasOwnProperty.call(exports, k)) Object.defineProperty(exports, k, {
+        enumerable: true,
+        get: function () { return createChecksumStream[k]; }
+    });
+});
+Object.keys(createBufferedReadable).forEach(function (k) {
+    if (k !== 'default' && !Object.prototype.hasOwnProperty.call(exports, k)) Object.defineProperty(exports, k, {
+        enumerable: true,
+        get: function () { return createBufferedReadable[k]; }
+    });
+});
+Object.keys(getAwsChunkedEncodingStream).forEach(function (k) {
+    if (k !== 'default' && !Object.prototype.hasOwnProperty.call(exports, k)) Object.defineProperty(exports, k, {
+        enumerable: true,
+        get: function () { return getAwsChunkedEncodingStream[k]; }
+    });
+});
+Object.keys(headStream).forEach(function (k) {
+    if (k !== 'default' && !Object.prototype.hasOwnProperty.call(exports, k)) Object.defineProperty(exports, k, {
+        enumerable: true,
+        get: function () { return headStream[k]; }
+    });
+});
+Object.keys(sdkStreamMixin).forEach(function (k) {
+    if (k !== 'default' && !Object.prototype.hasOwnProperty.call(exports, k)) Object.defineProperty(exports, k, {
+        enumerable: true,
+        get: function () { return sdkStreamMixin[k]; }
+    });
+});
+Object.keys(splitStream).forEach(function (k) {
+    if (k !== 'default' && !Object.prototype.hasOwnProperty.call(exports, k)) Object.defineProperty(exports, k, {
+        enumerable: true,
+        get: function () { return splitStream[k]; }
+    });
+});
+Object.keys(streamTypeCheck).forEach(function (k) {
+    if (k !== 'default' && !Object.prototype.hasOwnProperty.call(exports, k)) Object.defineProperty(exports, k, {
+        enumerable: true,
+        get: function () { return streamTypeCheck[k]; }
+    });
+});

extracted-source/node_modules/@smithy/util-stream/dist-cjs/sdk-stream-mixin.browser.js

@@ -0,0 +1,68 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.sdkStreamMixin = void 0;
+const fetch_http_handler_1 = require("@smithy/fetch-http-handler");
+const util_base64_1 = require("@smithy/util-base64");
+const util_hex_encoding_1 = require("@smithy/util-hex-encoding");
+const util_utf8_1 = require("@smithy/util-utf8");
+const stream_type_check_1 = require("./stream-type-check");
+const ERR_MSG_STREAM_HAS_BEEN_TRANSFORMED = "The stream has already been transformed.";
+const sdkStreamMixin = (stream) => {
+    if (!isBlobInstance(stream) && !(0, stream_type_check_1.isReadableStream)(stream)) {
+        const name = stream?.__proto__?.constructor?.name || stream;
+        throw new Error(`Unexpected stream implementation, expect Blob or ReadableStream, got ${name}`);
+    }
+    let transformed = false;
+    const transformToByteArray = async () => {
+        if (transformed) {
+            throw new Error(ERR_MSG_STREAM_HAS_BEEN_TRANSFORMED);
+        }
+        transformed = true;
+        return await (0, fetch_http_handler_1.streamCollector)(stream);
+    };
+    const blobToWebStream = (blob) => {
+        if (typeof blob.stream !== "function") {
+            throw new Error("Cannot transform payload Blob to web stream. Please make sure the Blob.stream() is polyfilled.\n" +
+                "If you are using React Native, this API is not yet supported, see: https://react-native.canny.io/feature-requests/p/fetch-streaming-body");
+        }
+        return blob.stream();
+    };
+    return Object.assign(stream, {
+        transformToByteArray: transformToByteArray,
+        transformToString: async (encoding) => {
+            const buf = await transformToByteArray();
+            if (encoding === "base64") {
+                return (0, util_base64_1.toBase64)(buf);
+            }
+            else if (encoding === "hex") {
+                return (0, util_hex_encoding_1.toHex)(buf);
+            }
+            else if (encoding === undefined || encoding === "utf8" || encoding === "utf-8") {
+                return (0, util_utf8_1.toUtf8)(buf);
+            }
+            else if (typeof TextDecoder === "function") {
+                return new TextDecoder(encoding).decode(buf);
+            }
+            else {
+                throw new Error("TextDecoder is not available, please make sure polyfill is provided.");
+            }
+        },
+        transformToWebStream: () => {
+            if (transformed) {
+                throw new Error(ERR_MSG_STREAM_HAS_BEEN_TRANSFORMED);
+            }
+            transformed = true;
+            if (isBlobInstance(stream)) {
+                return blobToWebStream(stream);
+            }
+            else if ((0, stream_type_check_1.isReadableStream)(stream)) {
+                return stream;
+            }
+            else {
+                throw new Error(`Cannot transform payload to web stream, got ${stream}`);
+            }
+        },
+    });
+};
+exports.sdkStreamMixin = sdkStreamMixin;
+const isBlobInstance = (stream) => typeof Blob === "function" && stream instanceof Blob;

extracted-source/node_modules/@smithy/util-stream/dist-cjs/sdk-stream-mixin.js

@@ -0,0 +1,54 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.sdkStreamMixin = void 0;
+const node_http_handler_1 = require("@smithy/node-http-handler");
+const util_buffer_from_1 = require("@smithy/util-buffer-from");
+const stream_1 = require("stream");
+const sdk_stream_mixin_browser_1 = require("./sdk-stream-mixin.browser");
+const ERR_MSG_STREAM_HAS_BEEN_TRANSFORMED = "The stream has already been transformed.";
+const sdkStreamMixin = (stream) => {
+    if (!(stream instanceof stream_1.Readable)) {
+        try {
+            return (0, sdk_stream_mixin_browser_1.sdkStreamMixin)(stream);
+        }
+        catch (e) {
+            const name = stream?.__proto__?.constructor?.name || stream;
+            throw new Error(`Unexpected stream implementation, expect Stream.Readable instance, got ${name}`);
+        }
+    }
+    let transformed = false;
+    const transformToByteArray = async () => {
+        if (transformed) {
+            throw new Error(ERR_MSG_STREAM_HAS_BEEN_TRANSFORMED);
+        }
+        transformed = true;
+        return await (0, node_http_handler_1.streamCollector)(stream);
+    };
+    return Object.assign(stream, {
+        transformToByteArray,
+        transformToString: async (encoding) => {
+            const buf = await transformToByteArray();
+            if (encoding === undefined || Buffer.isEncoding(encoding)) {
+                return (0, util_buffer_from_1.fromArrayBuffer)(buf.buffer, buf.byteOffset, buf.byteLength).toString(encoding);
+            }
+            else {
+                const decoder = new TextDecoder(encoding);
+                return decoder.decode(buf);
+            }
+        },
+        transformToWebStream: () => {
+            if (transformed) {
+                throw new Error(ERR_MSG_STREAM_HAS_BEEN_TRANSFORMED);
+            }
+            if (stream.readableFlowing !== null) {
+                throw new Error("The stream has been consumed by other callbacks.");
+            }
+            if (typeof stream_1.Readable.toWeb !== "function") {
+                throw new Error("Readable.toWeb() is not supported. Please ensure a polyfill is available.");
+            }
+            transformed = true;
+            return stream_1.Readable.toWeb(stream);
+        },
+    });
+};
+exports.sdkStreamMixin = sdkStreamMixin;

extracted-source/node_modules/@smithy/util-stream/dist-cjs/splitStream.browser.js

@@ -0,0 +1,10 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.splitStream = splitStream;
+async function splitStream(stream) {
+    if (typeof stream.stream === "function") {
+        stream = stream.stream();
+    }
+    const readableStream = stream;
+    return readableStream.tee();
+}

extracted-source/node_modules/@smithy/util-stream/dist-cjs/splitStream.js

@@ -0,0 +1,16 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.splitStream = splitStream;
+const stream_1 = require("stream");
+const splitStream_browser_1 = require("./splitStream.browser");
+const stream_type_check_1 = require("./stream-type-check");
+async function splitStream(stream) {
+    if ((0, stream_type_check_1.isReadableStream)(stream) || (0, stream_type_check_1.isBlob)(stream)) {
+        return (0, splitStream_browser_1.splitStream)(stream);
+    }
+    const stream1 = new stream_1.PassThrough();
+    const stream2 = new stream_1.PassThrough();
+    stream.pipe(stream1);
+    stream.pipe(stream2);
+    return [stream1, stream2];
+}

extracted-source/node_modules/@smithy/util-stream/dist-cjs/stream-type-check.js

@@ -0,0 +1,10 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.isBlob = exports.isReadableStream = void 0;
+const isReadableStream = (stream) => typeof ReadableStream === "function" &&
+    (stream?.constructor?.name === ReadableStream.name || stream instanceof ReadableStream);
+exports.isReadableStream = isReadableStream;
+const isBlob = (blob) => {
+    return typeof Blob === "function" && (blob?.constructor?.name === Blob.name || blob instanceof Blob);
+};
+exports.isBlob = isBlob;

extracted-source/node_modules/@smithy/util-stream/node_modules/@smithy/fetch-http-handler/dist-cjs/index.js

@@ -0,0 +1,216 @@
+'use strict';
+
+var protocolHttp = require('@smithy/protocol-http');
+var querystringBuilder = require('@smithy/querystring-builder');
+var utilBase64 = require('@smithy/util-base64');
+
+function createRequest(url, requestOptions) {
+    return new Request(url, requestOptions);
+}
+
+function requestTimeout(timeoutInMs = 0) {
+    return new Promise((resolve, reject) => {
+        if (timeoutInMs) {
+            setTimeout(() => {
+                const timeoutError = new Error(`Request did not complete within ${timeoutInMs} ms`);
+                timeoutError.name = "TimeoutError";
+                reject(timeoutError);
+            }, timeoutInMs);
+        }
+    });
+}
+
+const keepAliveSupport = {
+    supported: undefined,
+};
+class FetchHttpHandler {
+    config;
+    configProvider;
+    static create(instanceOrOptions) {
+        if (typeof instanceOrOptions?.handle === "function") {
+            return instanceOrOptions;
+        }
+        return new FetchHttpHandler(instanceOrOptions);
+    }
+    constructor(options) {
+        if (typeof options === "function") {
+            this.configProvider = options().then((opts) => opts || {});
+        }
+        else {
+            this.config = options ?? {};
+            this.configProvider = Promise.resolve(this.config);
+        }
+        if (keepAliveSupport.supported === undefined) {
+            keepAliveSupport.supported = Boolean(typeof Request !== "undefined" && "keepalive" in createRequest("https://[::1]"));
+        }
+    }
+    destroy() {
+    }
+    async handle(request, { abortSignal, requestTimeout: requestTimeout$1 } = {}) {
+        if (!this.config) {
+            this.config = await this.configProvider;
+        }
+        const requestTimeoutInMs = requestTimeout$1 ?? this.config.requestTimeout;
+        const keepAlive = this.config.keepAlive === true;
+        const credentials = this.config.credentials;
+        if (abortSignal?.aborted) {
+            const abortError = new Error("Request aborted");
+            abortError.name = "AbortError";
+            return Promise.reject(abortError);
+        }
+        let path = request.path;
+        const queryString = querystringBuilder.buildQueryString(request.query || {});
+        if (queryString) {
+            path += `?${queryString}`;
+        }
+        if (request.fragment) {
+            path += `#${request.fragment}`;
+        }
+        let auth = "";
+        if (request.username != null || request.password != null) {
+            const username = request.username ?? "";
+            const password = request.password ?? "";
+            auth = `${username}:${password}@`;
+        }
+        const { port, method } = request;
+        const url = `${request.protocol}//${auth}${request.hostname}${port ? `:${port}` : ""}${path}`;
+        const body = method === "GET" || method === "HEAD" ? undefined : request.body;
+        const requestOptions = {
+            body,
+            headers: new Headers(request.headers),
+            method: method,
+            credentials,
+        };
+        if (this.config?.cache) {
+            requestOptions.cache = this.config.cache;
+        }
+        if (body) {
+            requestOptions.duplex = "half";
+        }
+        if (typeof AbortController !== "undefined") {
+            requestOptions.signal = abortSignal;
+        }
+        if (keepAliveSupport.supported) {
+            requestOptions.keepalive = keepAlive;
+        }
+        if (typeof this.config.requestInit === "function") {
+            Object.assign(requestOptions, this.config.requestInit(request));
+        }
+        let removeSignalEventListener = () => { };
+        const fetchRequest = createRequest(url, requestOptions);
+        const raceOfPromises = [
+            fetch(fetchRequest).then((response) => {
+                const fetchHeaders = response.headers;
+                const transformedHeaders = {};
+                for (const pair of fetchHeaders.entries()) {
+                    transformedHeaders[pair[0]] = pair[1];
+                }
+                const hasReadableStream = response.body != undefined;
+                if (!hasReadableStream) {
+                    return response.blob().then((body) => ({
+                        response: new protocolHttp.HttpResponse({
+                            headers: transformedHeaders,
+                            reason: response.statusText,
+                            statusCode: response.status,
+                            body,
+                        }),
+                    }));
+                }
+                return {
+                    response: new protocolHttp.HttpResponse({
+                        headers: transformedHeaders,
+                        reason: response.statusText,
+                        statusCode: response.status,
+                        body: response.body,
+                    }),
+                };
+            }),
+            requestTimeout(requestTimeoutInMs),
+        ];
+        if (abortSignal) {
+            raceOfPromises.push(new Promise((resolve, reject) => {
+                const onAbort = () => {
+                    const abortError = new Error("Request aborted");
+                    abortError.name = "AbortError";
+                    reject(abortError);
+                };
+                if (typeof abortSignal.addEventListener === "function") {
+                    const signal = abortSignal;
+                    signal.addEventListener("abort", onAbort, { once: true });
+                    removeSignalEventListener = () => signal.removeEventListener("abort", onAbort);
+                }
+                else {
+                    abortSignal.onabort = onAbort;
+                }
+            }));
+        }
+        return Promise.race(raceOfPromises).finally(removeSignalEventListener);
+    }
+    updateHttpClientConfig(key, value) {
+        this.config = undefined;
+        this.configProvider = this.configProvider.then((config) => {
+            config[key] = value;
+            return config;
+        });
+    }
+    httpHandlerConfigs() {
+        return this.config ?? {};
+    }
+}
+
+const streamCollector = async (stream) => {
+    if ((typeof Blob === "function" && stream instanceof Blob) || stream.constructor?.name === "Blob") {
+        if (Blob.prototype.arrayBuffer !== undefined) {
+            return new Uint8Array(await stream.arrayBuffer());
+        }
+        return collectBlob(stream);
+    }
+    return collectStream(stream);
+};
+async function collectBlob(blob) {
+    const base64 = await readToBase64(blob);
+    const arrayBuffer = utilBase64.fromBase64(base64);
+    return new Uint8Array(arrayBuffer);
+}
+async function collectStream(stream) {
+    const chunks = [];
+    const reader = stream.getReader();
+    let isDone = false;
+    let length = 0;
+    while (!isDone) {
+        const { done, value } = await reader.read();
+        if (value) {
+            chunks.push(value);
+            length += value.length;
+        }
+        isDone = done;
+    }
+    const collected = new Uint8Array(length);
+    let offset = 0;
+    for (const chunk of chunks) {
+        collected.set(chunk, offset);
+        offset += chunk.length;
+    }
+    return collected;
+}
+function readToBase64(blob) {
+    return new Promise((resolve, reject) => {
+        const reader = new FileReader();
+        reader.onloadend = () => {
+            if (reader.readyState !== 2) {
+                return reject(new Error("Reader aborted too early"));
+            }
+            const result = (reader.result ?? "");
+            const commaIndex = result.indexOf(",");
+            const dataOffset = commaIndex > -1 ? commaIndex + 1 : result.length;
+            resolve(result.substring(dataOffset));
+        };
+        reader.onabort = () => reject(new Error("Read aborted"));
+        reader.onerror = () => reject(reader.error);
+        reader.readAsDataURL(blob);
+    });
+}
+
+exports.FetchHttpHandler = FetchHttpHandler;
+exports.keepAliveSupport = keepAliveSupport;
+exports.streamCollector = streamCollector;

extracted-source/node_modules/@smithy/util-stream/node_modules/@smithy/fetch-http-handler/node_modules/@smithy/protocol-http/dist-cjs/index.js

@@ -0,0 +1,169 @@
+'use strict';
+
+var types = require('@smithy/types');
+
+const getHttpHandlerExtensionConfiguration = (runtimeConfig) => {
+    return {
+        setHttpHandler(handler) {
+            runtimeConfig.httpHandler = handler;
+        },
+        httpHandler() {
+            return runtimeConfig.httpHandler;
+        },
+        updateHttpClientConfig(key, value) {
+            runtimeConfig.httpHandler?.updateHttpClientConfig(key, value);
+        },
+        httpHandlerConfigs() {
+            return runtimeConfig.httpHandler.httpHandlerConfigs();
+        },
+    };
+};
+const resolveHttpHandlerRuntimeConfig = (httpHandlerExtensionConfiguration) => {
+    return {
+        httpHandler: httpHandlerExtensionConfiguration.httpHandler(),
+    };
+};
+
+class Field {
+    name;
+    kind;
+    values;
+    constructor({ name, kind = types.FieldPosition.HEADER, values = [] }) {
+        this.name = name;
+        this.kind = kind;
+        this.values = values;
+    }
+    add(value) {
+        this.values.push(value);
+    }
+    set(values) {
+        this.values = values;
+    }
+    remove(value) {
+        this.values = this.values.filter((v) => v !== value);
+    }
+    toString() {
+        return this.values.map((v) => (v.includes(",") || v.includes(" ") ? `"${v}"` : v)).join(", ");
+    }
+    get() {
+        return this.values;
+    }
+}
+
+class Fields {
+    entries = {};
+    encoding;
+    constructor({ fields = [], encoding = "utf-8" }) {
+        fields.forEach(this.setField.bind(this));
+        this.encoding = encoding;
+    }
+    setField(field) {
+        this.entries[field.name.toLowerCase()] = field;
+    }
+    getField(name) {
+        return this.entries[name.toLowerCase()];
+    }
+    removeField(name) {
+        delete this.entries[name.toLowerCase()];
+    }
+    getByType(kind) {
+        return Object.values(this.entries).filter((field) => field.kind === kind);
+    }
+}
+
+class HttpRequest {
+    method;
+    protocol;
+    hostname;
+    port;
+    path;
+    query;
+    headers;
+    username;
+    password;
+    fragment;
+    body;
+    constructor(options) {
+        this.method = options.method || "GET";
+        this.hostname = options.hostname || "localhost";
+        this.port = options.port;
+        this.query = options.query || {};
+        this.headers = options.headers || {};
+        this.body = options.body;
+        this.protocol = options.protocol
+            ? options.protocol.slice(-1) !== ":"
+                ? `${options.protocol}:`
+                : options.protocol
+            : "https:";
+        this.path = options.path ? (options.path.charAt(0) !== "/" ? `/${options.path}` : options.path) : "/";
+        this.username = options.username;
+        this.password = options.password;
+        this.fragment = options.fragment;
+    }
+    static clone(request) {
+        const cloned = new HttpRequest({
+            ...request,
+            headers: { ...request.headers },
+        });
+        if (cloned.query) {
+            cloned.query = cloneQuery(cloned.query);
+        }
+        return cloned;
+    }
+    static isInstance(request) {
+        if (!request) {
+            return false;
+        }
+        const req = request;
+        return ("method" in req &&
+            "protocol" in req &&
+            "hostname" in req &&
+            "path" in req &&
+            typeof req["query"] === "object" &&
+            typeof req["headers"] === "object");
+    }
+    clone() {
+        return HttpRequest.clone(this);
+    }
+}
+function cloneQuery(query) {
+    return Object.keys(query).reduce((carry, paramName) => {
+        const param = query[paramName];
+        return {
+            ...carry,
+            [paramName]: Array.isArray(param) ? [...param] : param,
+        };
+    }, {});
+}
+
+class HttpResponse {
+    statusCode;
+    reason;
+    headers;
+    body;
+    constructor(options) {
+        this.statusCode = options.statusCode;
+        this.reason = options.reason;
+        this.headers = options.headers || {};
+        this.body = options.body;
+    }
+    static isInstance(response) {
+        if (!response)
+            return false;
+        const resp = response;
+        return typeof resp.statusCode === "number" && typeof resp.headers === "object";
+    }
+}
+
+function isValidHostname(hostname) {
+    const hostPattern = /^[a-z0-9][a-z0-9\.\-]*[a-z0-9]$/;
+    return hostPattern.test(hostname);
+}
+
+exports.Field = Field;
+exports.Fields = Fields;
+exports.HttpRequest = HttpRequest;
+exports.HttpResponse = HttpResponse;
+exports.getHttpHandlerExtensionConfiguration = getHttpHandlerExtensionConfiguration;
+exports.isValidHostname = isValidHostname;
+exports.resolveHttpHandlerRuntimeConfig = resolveHttpHandlerRuntimeConfig;

extracted-source/node_modules/@smithy/util-stream/node_modules/@smithy/fetch-http-handler/node_modules/@smithy/querystring-builder/dist-cjs/index.js

@@ -0,0 +1,26 @@
+'use strict';
+
+var utilUriEscape = require('@smithy/util-uri-escape');
+
+function buildQueryString(query) {
+    const parts = [];
+    for (let key of Object.keys(query).sort()) {
+        const value = query[key];
+        key = utilUriEscape.escapeUri(key);
+        if (Array.isArray(value)) {
+            for (let i = 0, iLen = value.length; i < iLen; i++) {
+                parts.push(`${key}=${utilUriEscape.escapeUri(value[i])}`);
+            }
+        }
+        else {
+            let qsEntry = key;
+            if (value || typeof value === "string") {
+                qsEntry += `=${utilUriEscape.escapeUri(value)}`;
+            }
+            parts.push(qsEntry);
+        }
+    }
+    return parts.join("&");
+}
+
+exports.buildQueryString = buildQueryString;

extracted-source/node_modules/@smithy/util-stream/node_modules/@smithy/fetch-http-handler/node_modules/@smithy/querystring-builder/node_modules/@smithy/util-uri-escape/dist-cjs/index.js

@@ -0,0 +1,9 @@
+'use strict';
+
+const escapeUri = (uri) => encodeURIComponent(uri).replace(/[!'()*]/g, hexEncode);
+const hexEncode = (c) => `%${c.charCodeAt(0).toString(16).toUpperCase()}`;
+
+const escapeUriPath = (uri) => uri.split("/").map(escapeUri).join("/");
+
+exports.escapeUri = escapeUri;
+exports.escapeUriPath = escapeUriPath;

extracted-source/node_modules/@smithy/util-stream/node_modules/@smithy/types/dist-cjs/index.js

@@ -0,0 +1,91 @@
+'use strict';
+
+exports.HttpAuthLocation = void 0;
+(function (HttpAuthLocation) {
+    HttpAuthLocation["HEADER"] = "header";
+    HttpAuthLocation["QUERY"] = "query";
+})(exports.HttpAuthLocation || (exports.HttpAuthLocation = {}));
+
+exports.HttpApiKeyAuthLocation = void 0;
+(function (HttpApiKeyAuthLocation) {
+    HttpApiKeyAuthLocation["HEADER"] = "header";
+    HttpApiKeyAuthLocation["QUERY"] = "query";
+})(exports.HttpApiKeyAuthLocation || (exports.HttpApiKeyAuthLocation = {}));
+
+exports.EndpointURLScheme = void 0;
+(function (EndpointURLScheme) {
+    EndpointURLScheme["HTTP"] = "http";
+    EndpointURLScheme["HTTPS"] = "https";
+})(exports.EndpointURLScheme || (exports.EndpointURLScheme = {}));
+
+exports.AlgorithmId = void 0;
+(function (AlgorithmId) {
+    AlgorithmId["MD5"] = "md5";
+    AlgorithmId["CRC32"] = "crc32";
+    AlgorithmId["CRC32C"] = "crc32c";
+    AlgorithmId["SHA1"] = "sha1";
+    AlgorithmId["SHA256"] = "sha256";
+})(exports.AlgorithmId || (exports.AlgorithmId = {}));
+const getChecksumConfiguration = (runtimeConfig) => {
+    const checksumAlgorithms = [];
+    if (runtimeConfig.sha256 !== undefined) {
+        checksumAlgorithms.push({
+            algorithmId: () => exports.AlgorithmId.SHA256,
+            checksumConstructor: () => runtimeConfig.sha256,
+        });
+    }
+    if (runtimeConfig.md5 != undefined) {
+        checksumAlgorithms.push({
+            algorithmId: () => exports.AlgorithmId.MD5,
+            checksumConstructor: () => runtimeConfig.md5,
+        });
+    }
+    return {
+        addChecksumAlgorithm(algo) {
+            checksumAlgorithms.push(algo);
+        },
+        checksumAlgorithms() {
+            return checksumAlgorithms;
+        },
+    };
+};
+const resolveChecksumRuntimeConfig = (clientConfig) => {
+    const runtimeConfig = {};
+    clientConfig.checksumAlgorithms().forEach((checksumAlgorithm) => {
+        runtimeConfig[checksumAlgorithm.algorithmId()] = checksumAlgorithm.checksumConstructor();
+    });
+    return runtimeConfig;
+};
+
+const getDefaultClientConfiguration = (runtimeConfig) => {
+    return getChecksumConfiguration(runtimeConfig);
+};
+const resolveDefaultRuntimeConfig = (config) => {
+    return resolveChecksumRuntimeConfig(config);
+};
+
+exports.FieldPosition = void 0;
+(function (FieldPosition) {
+    FieldPosition[FieldPosition["HEADER"] = 0] = "HEADER";
+    FieldPosition[FieldPosition["TRAILER"] = 1] = "TRAILER";
+})(exports.FieldPosition || (exports.FieldPosition = {}));
+
+const SMITHY_CONTEXT_KEY = "__smithy_context";
+
+exports.IniSectionType = void 0;
+(function (IniSectionType) {
+    IniSectionType["PROFILE"] = "profile";
+    IniSectionType["SSO_SESSION"] = "sso-session";
+    IniSectionType["SERVICES"] = "services";
+})(exports.IniSectionType || (exports.IniSectionType = {}));
+
+exports.RequestHandlerProtocol = void 0;
+(function (RequestHandlerProtocol) {
+    RequestHandlerProtocol["HTTP_0_9"] = "http/0.9";
+    RequestHandlerProtocol["HTTP_1_0"] = "http/1.0";
+    RequestHandlerProtocol["TDS_8_0"] = "tds/8.0";
+})(exports.RequestHandlerProtocol || (exports.RequestHandlerProtocol = {}));
+
+exports.SMITHY_CONTEXT_KEY = SMITHY_CONTEXT_KEY;
+exports.getDefaultClientConfiguration = getDefaultClientConfiguration;
+exports.resolveDefaultRuntimeConfig = resolveDefaultRuntimeConfig;

extracted-source/node_modules/@smithy/util-stream/node_modules/@smithy/util-base64/dist-cjs/fromBase64.js

@@ -0,0 +1,16 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.fromBase64 = void 0;
+const util_buffer_from_1 = require("@smithy/util-buffer-from");
+const BASE64_REGEX = /^[A-Za-z0-9+/]*={0,2}$/;
+const fromBase64 = (input) => {
+    if ((input.length * 3) % 4 !== 0) {
+        throw new TypeError(`Incorrect padding on base64 string.`);
+    }
+    if (!BASE64_REGEX.exec(input)) {
+        throw new TypeError(`Invalid base64 string.`);
+    }
+    const buffer = (0, util_buffer_from_1.fromString)(input, "base64");
+    return new Uint8Array(buffer.buffer, buffer.byteOffset, buffer.byteLength);
+};
+exports.fromBase64 = fromBase64;

extracted-source/node_modules/@smithy/util-stream/node_modules/@smithy/util-base64/dist-cjs/index.js

@@ -0,0 +1,19 @@
+'use strict';
+
+var fromBase64 = require('./fromBase64');
+var toBase64 = require('./toBase64');
+
+
+
+Object.keys(fromBase64).forEach(function (k) {
+	if (k !== 'default' && !Object.prototype.hasOwnProperty.call(exports, k)) Object.defineProperty(exports, k, {
+		enumerable: true,
+		get: function () { return fromBase64[k]; }
+	});
+});
+Object.keys(toBase64).forEach(function (k) {
+	if (k !== 'default' && !Object.prototype.hasOwnProperty.call(exports, k)) Object.defineProperty(exports, k, {
+		enumerable: true,
+		get: function () { return toBase64[k]; }
+	});
+});

extracted-source/node_modules/@smithy/util-stream/node_modules/@smithy/util-base64/dist-cjs/toBase64.js

@@ -0,0 +1,19 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.toBase64 = void 0;
+const util_buffer_from_1 = require("@smithy/util-buffer-from");
+const util_utf8_1 = require("@smithy/util-utf8");
+const toBase64 = (_input) => {
+    let input;
+    if (typeof _input === "string") {
+        input = (0, util_utf8_1.fromUtf8)(_input);
+    }
+    else {
+        input = _input;
+    }
+    if (typeof input !== "object" || typeof input.byteOffset !== "number" || typeof input.byteLength !== "number") {
+        throw new Error("@smithy/util-base64: toBase64 encoder function only accepts string | Uint8Array.");
+    }
+    return (0, util_buffer_from_1.fromArrayBuffer)(input.buffer, input.byteOffset, input.byteLength).toString("base64");
+};
+exports.toBase64 = toBase64;

extracted-source/node_modules/@smithy/util-stream/node_modules/@smithy/util-buffer-from/dist-cjs/index.js

@@ -0,0 +1,20 @@
+'use strict';
+
+var isArrayBuffer = require('@smithy/is-array-buffer');
+var buffer = require('buffer');
+
+const fromArrayBuffer = (input, offset = 0, length = input.byteLength - offset) => {
+    if (!isArrayBuffer.isArrayBuffer(input)) {
+        throw new TypeError(`The "input" argument must be ArrayBuffer. Received type ${typeof input} (${input})`);
+    }
+    return buffer.Buffer.from(input, offset, length);
+};
+const fromString = (input, encoding) => {
+    if (typeof input !== "string") {
+        throw new TypeError(`The "input" argument must be of type string. Received type ${typeof input} (${input})`);
+    }
+    return encoding ? buffer.Buffer.from(input, encoding) : buffer.Buffer.from(input);
+};
+
+exports.fromArrayBuffer = fromArrayBuffer;
+exports.fromString = fromString;

extracted-source/node_modules/@smithy/util-stream/node_modules/@smithy/util-buffer-from/node_modules/@smithy/is-array-buffer/dist-cjs/index.js

@@ -0,0 +1,6 @@
+'use strict';
+
+const isArrayBuffer = (arg) => (typeof ArrayBuffer === "function" && arg instanceof ArrayBuffer) ||
+    Object.prototype.toString.call(arg) === "[object ArrayBuffer]";
+
+exports.isArrayBuffer = isArrayBuffer;

extracted-source/node_modules/@smithy/util-stream/node_modules/@smithy/util-hex-encoding/dist-cjs/index.js

@@ -0,0 +1,38 @@
+'use strict';
+
+const SHORT_TO_HEX = {};
+const HEX_TO_SHORT = {};
+for (let i = 0; i < 256; i++) {
+    let encodedByte = i.toString(16).toLowerCase();
+    if (encodedByte.length === 1) {
+        encodedByte = `0${encodedByte}`;
+    }
+    SHORT_TO_HEX[i] = encodedByte;
+    HEX_TO_SHORT[encodedByte] = i;
+}
+function fromHex(encoded) {
+    if (encoded.length % 2 !== 0) {
+        throw new Error("Hex encoded strings must have an even number length");
+    }
+    const out = new Uint8Array(encoded.length / 2);
+    for (let i = 0; i < encoded.length; i += 2) {
+        const encodedByte = encoded.slice(i, i + 2).toLowerCase();
+        if (encodedByte in HEX_TO_SHORT) {
+            out[i / 2] = HEX_TO_SHORT[encodedByte];
+        }
+        else {
+            throw new Error(`Cannot decode unrecognized sequence ${encodedByte} as hexadecimal`);
+        }
+    }
+    return out;
+}
+function toHex(bytes) {
+    let out = "";
+    for (let i = 0; i < bytes.byteLength; i++) {
+        out += SHORT_TO_HEX[bytes[i]];
+    }
+    return out;
+}
+
+exports.fromHex = fromHex;
+exports.toHex = toHex;