interface Blobimport { type Blob } from "https://deno.land/x/deno@v0.1.12/js/dom_types.ts"; A blob object represents a file-like object of immutable, raw data. Propertiesreadonlysize: numberThe size, in bytes, of the data contained in the Blob object. readonlytype: stringA string indicating the media type of the data contained in the Blob. If the type is unknown, this string is empty. Methodsslice(start?: number,end?: number,contentType?: string,): BlobReturns a new Blob object containing the data in the specified range of bytes of the source Blob.