The maximum number of files to be returned.
Offset of the first entry to return as received from the previous request; use empty string to get the first chunk of results.
Optional
only_Pass true to search only for active downloads, including paused.
Optional
only_Pass true to search only for completed downloads.
Query to search for; may be empty to return all downloaded files.
Searches for files in the file download list or recently downloaded files from the list. Request type for Tdjson#searchFileDownloads.