import { InferCSVRecord, ParseBinaryOptions } from '../../../core/types';
/**
 * Parse CSV from a {@link !Blob} or {@link !File} to records.
 *
 * @remarks
 * This function can parse CSV data from Blob or File objects.
 * If the Blob has a type with charset parameter, it will be used for decoding.
 *
 * File objects (from file inputs or drag-and-drop) extend Blob and are automatically supported.
 *
 * @category Middle-level API
 * @param blob - The blob or file to parse
 * @param options - Parsing options
 * @returns Async iterable iterator of records.
 *
 * If you want array of records, use {@link parseBlob.toArray} function.
 *
 * @example Parsing CSV from Blob
 *
 * ```ts
 * import { parseBlob } from 'web-csv-toolbox';
 *
 * const blob = new Blob(['name,age\nAlice,42\nBob,69'], { type: 'text/csv' });
 *
 * for await (const record of parseBlob(blob)) {
 *   console.log(record);
 * }
 * ```
 *
 * @example Parsing CSV from File (input element)
 *
 * ```ts
 * import { parseBlob } from 'web-csv-toolbox';
 *
 * const input = document.querySelector('input[type="file"]');
 * input.addEventListener('change', async (event) => {
 *   const file = event.target.files[0];
 *   for await (const record of parseBlob(file)) {
 *     console.log(record);
 *   }
 * });
 * ```
 *
 * @example Parsing CSV from Blob with charset
 *
 * ```ts
 * import { parseBlob } from 'web-csv-toolbox';
 *
 * const blob = new Blob([csvData], { type: 'text/csv;charset=shift-jis' });
 *
 * for await (const record of parseBlob(blob)) {
 *   console.log(record);
 * }
 * ```
 */
export declare function parseBlob<Header extends ReadonlyArray<string>, Options extends ParseBinaryOptions<Header> = ParseBinaryOptions<Header>>(blob: Blob, options?: Options): AsyncIterableIterator<InferCSVRecord<Header, Options>>;
export declare namespace parseBlob {
    /**
     * Parse CSV from a {@link !Blob} or {@link !File} to array of records.
     *
     * @returns Array of records
     *
     * @example Parsing CSV from Blob
     *
     * ```ts
     * import { parseBlob } from 'web-csv-toolbox';
     *
     * const blob = new Blob(['name,age\nAlice,42\nBob,69'], { type: 'text/csv' });
     *
     * const records = await parseBlob.toArray(blob);
     * console.log(records);
     * ```
     */
    function toArray<Header extends ReadonlyArray<string>, Options extends ParseBinaryOptions<Header> = ParseBinaryOptions<Header>>(blob: Blob, options?: Options): Promise<InferCSVRecord<Header, Options>[]>;
    /**
     * Parse CSV from a {@link !Blob} or {@link !File} to stream of records.
     *
     * @param blob - Blob or File to parse
     * @returns Stream of records
     *
     * @example Parsing CSV from Blob
     *
     * ```ts
     * import { parseBlob } from 'web-csv-toolbox';
     *
     * const blob = new Blob(['name,age\nAlice,42\nBob,69'], { type: 'text/csv' });
     *
     * await parseBlob.toStream(blob)
     *   .pipeTo(
     *     new WritableStream({
     *       write(record) {
     *         console.log(record);
     *       },
     *    }),
     * );
     * // Prints:
     * // { name: 'Alice', age: '42' }
     * // { name: 'Bob', age: '69' }
     * ```
     */
    function toStream<Header extends ReadonlyArray<string>, Options extends ParseBinaryOptions<Header> = ParseBinaryOptions<Header>>(blob: Blob, options?: Options): ReadableStream<InferCSVRecord<Header, Options>>;
}