/**
 * Concatenates one or more values together and converts them to a Blob.
 *
 * @param var_args The values that will make up the resulting blob.
 * @return The blob.
 */
export declare function getBlob(...var_args: (string | Blob | ArrayBuffer)[]): Blob;
/**
 * Slices the blob. The returned blob contains data from the start byte
 * (inclusive) till the end byte (exclusive). Negative indices cannot be used.
 *
 * @param blob The blob to be sliced.
 * @param start Index of the starting byte.
 * @param end Index of the ending byte.
 * @return The blob slice or null if not supported.
 */
export declare function sliceBlob(blob: Blob, start: number, end: number): Blob | null;