import { ZStream } from './zstream.js';
import { GZheader } from './gzheader.js';
/**
 * class Deflate
 *
 * Generic JS-style wrapper for zlib calls. If you don't need
 * streaming behaviour - use more simple functions: [[deflate]],
 * [[deflateRaw]] and [[gzip]].
 **/
/**
 * Deflate.result -> Uint8Array
 *
 * Compressed result, generated by default [[Deflate#onData]]
 * and [[Deflate#onEnd]] handlers. Filled after you push last chunk
 * (call [[Deflate#push]] with `Z_FINISH` / `true` param).
 **/
/**
 * Deflate.err -> Number
 *
 * Error code after deflate finished. 0 (Z_OK) on success.
 * You will not need it in real life, because deflate errors
 * are possible only on wrong options or bad `onData` / `onEnd`
 * custom handlers.
 **/
/**
 * Deflate.msg -> String
 *
 * Error message, if [[Deflate.err]] != 0
 **/
type options = {
    level: number;
    windowBits: number;
    memLevel: number;
    strategy: number;
    dictionary: Uint8Array;
    chunkSize: number;
    raw: boolean;
    gzip: boolean;
    method: number;
    header: GZheader;
    to: string;
};
type options_assigned = {
    level?: number;
    windowBits?: number;
    memLevel?: number;
    strategy?: number;
    dictionary?: Uint8Array;
    chunkSize?: number;
    raw?: boolean;
    gzip?: boolean;
    method?: number;
    header?: GZheader;
    to?: string;
};
/**
 * new Deflate(options)
 * - options (Object): zlib deflate options.
 *
 * Creates new deflator instance with specified params. Throws exception
 * on bad params. Supported options:
 *
 * - `level`
 * - `windowBits`
 * - `memLevel`
 * - `strategy`
 * - `dictionary`
 *
 * [http://zlib.net/manual.html#Advanced](http://zlib.net/manual.html#Advanced)
 * for more information on these.
 *
 * Additional options, for internal needs:
 *
 * - `chunkSize` - size of generated data chunks (16K by default)
 * - `raw` (Boolean) - do raw deflate
 * - `gzip` (Boolean) - create gzip wrapper
 * - `header` (Object) - custom header for gzip
 *   - `text` (Boolean) - true if compressed data believed to be text
 *   - `time` (Number) - modification time, unix timestamp
 *   - `os` (Number) - operation system code
 *   - `extra` (Array) - array of bytes with extra data (max 65536)
 *   - `name` (String) - file name (binary string)
 *   - `comment` (String) - comment (binary string)
 *   - `hcrc` (Boolean) - true if header crc should be added
 *
 * ##### Example:
 *
 * ```javascript
 * const zlib = require('deflate')
 *   , chunk1 = new Uint8Array([1,2,3,4,5,6,7,8,9])
 *   , chunk2 = new Uint8Array([10,11,12,13,14,15,16,17,18,19]);
 *
 * const deflate = new zlib.Deflate({ level: 3});
 *
 * deflate.push(chunk1, false);
 * deflate.push(chunk2, true);  // true -> last chunk
 *
 * if (deflate.err) { throw new Error(deflate.err); }
 *
 * console.log(deflate.result);
 * ```
 * @param {options} options - options
 **/
export declare class Deflate {
    options: options;
    err: number;
    msg: string;
    ended: boolean | number;
    chunks: Uint8Array[];
    strm: ZStream;
    _dict_set: boolean | undefined;
    result: Buffer | Uint8Array | undefined;
    constructor(options?: options_assigned);
    /**
     * Deflate#push(data[, flush_mode]) -> Boolean
     * - data (Uint8Array|ArrayBuffer|String): input data. Strings will be
     *   converted to utf8 byte sequence.
     * - flush_mode (Number|Boolean): 0..6 for corresponding Z_NO_FLUSH..Z_TREE modes.
     *   See constants. Skipped or `false` means Z_NO_FLUSH, `true` means Z_FINISH.
     *
     * Sends input data to deflate pipe, generating [[Deflate#onData]] calls with
     * new compressed chunks. Returns `true` on success. The last data block must
     * have `flush_mode` Z_FINISH (or `true`). That will flush internal pending
     * buffers and call [[Deflate#onEnd]].
     *
     * On fail call [[Deflate#onEnd]] with error code and return false.
     *
     * ##### Example
     *
     * ```javascript
     * push(chunk, false); // push one of data chunks
     * ...
     * push(chunk, true);  // push last chunk
     * ```
     * @param {Uint8Array|Buffer} data - source chunk
     * @param {boolean|number} flush_mode - `true` for finished
     **/
    push(data: Uint8Array | Buffer, flush_mode: boolean | number): boolean;
    /**
     * Deflate#onData(chunk) -> Void
     * - chunk (Uint8Array): output data.
     *
     * By default, stores data blocks in `chunks[]` property and glue
     * those in `onEnd`. Override this handler, if you need another behaviour.
     * @param {Uint8Array|Buffer} chunk - source data
     **/
    onData(chunk: Uint8Array | Buffer): void;
    /**
     * Deflate#onEnd(status) -> Void
     * - status (Number): deflate status. 0 (Z_OK) on success,
     *   other if not.
     *
     * Called once after you tell deflate that the input stream is
     * complete (Z_FINISH). By default - join collected chunks,
     * free memory and fill `results` / `err` properties.
     **/
    onEnd(status: number): void;
}
/**
 * deflate(data[, options]) -> Uint8Array
 * - data (Uint8Array|ArrayBuffer|String): input data to compress.
 * - options (Object): zlib deflate options.
 *
 * Compress `data` with deflate algorithm and `options`.
 *
 * Supported options are:
 *
 * - level
 * - windowBits
 * - memLevel
 * - strategy
 * - dictionary
 *
 * [http://zlib.net/manual.html#Advanced](http://zlib.net/manual.html#Advanced)
 * for more information on these.
 *
 * Sugar (options):
 *
 * - `raw` (Boolean) - say that we work with raw stream, if you don't wish to specify
 *   negative windowBits implicitly.
 *
 * ##### Example:
 *
 * ```javascript
 * const zlib = require('deflate')
 * const data = new Uint8Array([1,2,3,4,5,6,7,8,9]);
 *
 * console.log(zlib.deflate(data));
 * ```
 * @param {Buffer|Uint8Array} input - Input data
 * @param {options} options - options
 **/
export declare function deflate(input: Buffer | Uint8Array, options?: options_assigned): Uint8Array<ArrayBufferLike> | Buffer<ArrayBufferLike> | undefined;
/**
 * deflateRaw(data[, options]) -> Uint8Array
 * - data (Uint8Array|ArrayBuffer|String): input data to compress.
 * - options (Object): zlib deflate options.
 *
 * The same as [[deflate]], but creates raw data, without wrapper
 * (header and adler32 crc).
 * @param {Buffer|Uint8Array} input - Input data
 * @param {options} options - options
 **/
export declare function deflateRaw(input: Buffer | Uint8Array, options?: options_assigned): Uint8Array<ArrayBufferLike> | Buffer<ArrayBufferLike> | undefined;
/**
 * gzip(data[, options]) -> Uint8Array
 * - data (Uint8Array|ArrayBuffer|String): input data to compress.
 * - options (Object): zlib deflate options.
 *
 * The same as [[deflate]], but create gzip wrapper instead of
 * deflate one.
 * @param {Buffer|Uint8Array} input - Input data
 * @param {options} options - options
 **/
export declare function gzip(input: Buffer | Uint8Array, options?: options_assigned): Uint8Array<ArrayBufferLike> | Buffer<ArrayBufferLike> | undefined;
/**
 * class Inflate
 *
 * Generic JS-style wrapper for zlib calls. If you don't need
 * streaming behaviour - use more simple functions: [[inflate]]
 * and [[inflateRaw]].
 **/
/**
 * Inflate.result -> Uint8Array|String
 *
 * Uncompressed result, generated by default [[Inflate#onData]]
 * and [[Inflate#onEnd]] handlers. Filled after you push last chunk
 * (call [[Inflate#push]] with `Z_FINISH` / `true` param).
 **/
/**
 * Inflate.err -> Number
 *
 * Error code after inflate finished. 0 (Z_OK) on success.
 * Should be checked if broken data possible.
 **/
/**
 * Inflate.msg -> String
 *
 * Error message, if [[Inflate.err]] != 0
 **/
/**
 * new Inflate(options)
 * - options (Object): zlib inflate options.
 *
 * Creates new inflator instance with specified params. Throws exception
 * on bad params. Supported options:
 *
 * - `windowBits`
 * - `dictionary`
 *
 * [http://zlib.net/manual.html#Advanced](http://zlib.net/manual.html#Advanced)
 * for more information on these.
 *
 * Additional options, for internal needs:
 *
 * - `chunkSize` - size of generated data chunks (16K by default)
 * - `raw` (Boolean) - do raw inflate
 * - `to` (String) - if equal to 'string', then result will be converted
 *   from utf8 to utf16 (javascript) string. When string output requested,
 *   chunk length can differ from `chunkSize`, depending on content.
 *
 * By default, when no options set, autodetect deflate/gzip data format via
 * wrapper header.
 *
 * ##### Example:
 *
 * ```javascript
 * const zlib = require('deflate')
 * const chunk1 = new Uint8Array([1,2,3,4,5,6,7,8,9])
 * const chunk2 = new Uint8Array([10,11,12,13,14,15,16,17,18,19]);
 *
 * const inflate = new zlib.Inflate({ level: 3});
 *
 * inflate.push(chunk1, false);
 * inflate.push(chunk2, true);  // true -> last chunk
 *
 * if (inflate.err) { throw new Error(inflate.err); }
 *
 * console.log(inflate.result);
 * ```
 * @param {options} options - options
 **/
export declare class Inflate {
    options: options;
    err: number;
    msg: string;
    ended: boolean | number;
    chunks: Uint8Array[];
    strm: ZStream;
    _dict_set: boolean | undefined;
    result: Buffer | Uint8Array | string | undefined;
    header: GZheader;
    constructor(options?: options_assigned);
    /**
     * Inflate#push(data[, flush_mode]) -> Boolean
     * - data (Uint8Array|ArrayBuffer): input data
     * - flush_mode (Number|Boolean): 0..6 for corresponding Z_NO_FLUSH..Z_TREE
     *   flush modes. See constants. Skipped or `false` means Z_NO_FLUSH,
     *   `true` means Z_FINISH.
     *
     * Sends input data to inflate pipe, generating [[Inflate#onData]] calls with
     * new output chunks. Returns `true` on success. If end of stream detected,
     * [[Inflate#onEnd]] will be called.
     *
     * `flush_mode` is not needed for normal operation, because end of stream
     * detected automatically. You may try to use it for advanced things, but
     * this functionality was not tested.
     *
     * On fail call [[Inflate#onEnd]] with error code and return false.
     *
     * ##### Example
     *
     * ```javascript
     * push(chunk, false); // push one of data chunks
     * ...
     * push(chunk, true);  // push last chunk
     * ```
     * @param {Buffer|Uint8Array} data - input
     * @param {boolean} flush_mode - `true` for finished
     **/
    push(data: Buffer | Uint8Array, flush_mode: number | boolean): boolean;
    /**
     * Inflate#onData(chunk) -> Void
     * - chunk (Uint8Array|String): output data. When string output requested,
     *   each chunk will be string.
     *
     * By default, stores data blocks in `chunks[]` property and glue
     * those in `onEnd`. Override this handler, if you need another behaviour.
     **/
    onData(chunk: Buffer | Uint8Array | string): void;
    /**
     * Inflate#onEnd(status) -> Void
     * - status (Number): inflate status. 0 (Z_OK) on success,
     *   other if not.
     *
     * Called either after you tell inflate that the input stream is
     * complete (Z_FINISH). By default - join collected chunks,
     * free memory and fill `results` / `err` properties.
     **/
    onEnd(status: number): void;
}
/**
 * inflate(data[, options]) -> Uint8Array|String
 * - data (Uint8Array|ArrayBuffer): input data to decompress.
 * - options (Object): zlib inflate options.
 *
 * Decompress `data` with inflate/ungzip and `options`. Autodetect
 * format via wrapper header by default. That's why we don't provide
 * separate `ungzip` method.
 *
 * Supported options are:
 *
 * - windowBits
 *
 * [http://zlib.net/manual.html#Advanced](http://zlib.net/manual.html#Advanced)
 * for more information.
 *
 * Sugar (options):
 *
 * - `raw` (Boolean) - say that we work with raw stream, if you don't wish to specify
 *   negative windowBits implicitly.
 * - `to` (String) - if equal to 'string', then result will be converted
 *   from utf8 to utf16 (javascript) string. When string output requested,
 *   chunk length can differ from `chunkSize`, depending on content.
 *
 *
 * ##### Example:
 *
 * ```javascript
 * const zlib = require('deflate');
 * const input = zlib.deflate(new Uint8Array([1,2,3,4,5,6,7,8,9]));
 * let output;
 *
 * try {
 *   output = zlib.inflate(input);
 * } catch (err) {
 *   console.log(err);
 * }
 * ```
 **/
export declare function inflate(input: Buffer | Uint8Array | string, options?: options_assigned): string | Uint8Array<ArrayBufferLike> | Buffer<ArrayBufferLike> | undefined;
/**
 * inflateRaw(data[, options]) -> Uint8Array|String
 * - data (Uint8Array|ArrayBuffer): input data to decompress.
 * - options (Object): zlib inflate options.
 *
 * The same as [[inflate]], but creates raw data, without wrapper
 * (header and adler32 crc).
 **/
export declare function inflateRaw(input: Buffer | Uint8Array | string, options?: options_assigned): string | Uint8Array<ArrayBufferLike> | Buffer<ArrayBufferLike> | undefined;
/**
 * ungzip(data[, options]) -> Uint8Array|String
 * - data (Uint8Array|ArrayBuffer): input data to decompress.
 * - options (Object): zlib inflate options.
 *
 * Just shortcut to [[inflate]], because it autodetects format
 * by header.content. Done for convenience.
 **/
export declare function ungzip(input: Buffer | Uint8Array | string, options?: options_assigned): string | Uint8Array<ArrayBufferLike> | Buffer<ArrayBufferLike> | undefined;
export {};
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