accessibleAt?:string|number|Date;

action:'read'|'write'|'delete'|'resumable';

cname?:string;

contentMd5?:string;

contentType?:string;

expires:string|number|Date;

extensionHeaders?:http.OutgoingHttpHeaders;

promptSaveAs?:string;

queryParams?:Query;

responseDisposition?:string;

responseType?:string;

version?:'v2'|'v4';

virtualHostedStyle?:boolean;