Lists metadata for files uploaded to the Gemini API, supporting pagination.
gemini_list_files(.page_size = 10, .page_token = NULL)
A tibble containing metadata for each file, including fields such as name, display name, MIME type, and URI.
The maximum number of files to return per page (default: 10, maximum: 100).
A token for fetching the next page of results (default: NULL).