method ZipDirectoryEntry.prototype.addFileSystemHandleimport { ZipDirectoryEntry } from "https://dotland.deno.dev/x/zipjs@v2.7.8/index.js"; addFileSystemHandle(fileSystemEntry: FileSystemHandle, options?: ZipWriterAddDataOptions): Promise<ZipEntry>Adds an entry with content provided via a FileSystemHandle instance Adds an entry with content provided via a FileSystemHandle instance ParametersfileSystemEntry: FileSystemHandleThe fileSystemHandle instance. optionaloptions: ZipWriterAddDataOptionsThe options. ReturnsPromise<ZipEntry>A promise resolving to a ZipFileEntry or a ZipDirectoryEntry instance.