Make metadata for an object
Use this to pass to uploads in gcs_upload
gcs_metadata_object( object_name = NULL, metadata = NULL, md5Hash = NULL, crc32c = NULL, contentLanguage = NULL, contentEncoding = NULL, contentDisposition = NULL, cacheControl = NULL )
object_name | 
 Name of the object. GCS uses this version if also set elsewhere, or a   | 
metadata | 
 User-provided metadata, in key/value pairs  | 
md5Hash | 
 MD5 hash of the data; encoded using base64  | 
crc32c | 
 CRC32c checksum, as described in RFC 4960, Appendix B; encoded using base64 in big-endian byte order  | 
contentLanguage | 
 Content-Language of the object data  | 
contentEncoding | 
 Content-Encoding of the object data  | 
contentDisposition | 
 Content-Disposition of the object data  | 
cacheControl | 
 Cache-Control directive for the object data  | 
Object metadata for uploading of class gar_Object
Other object functions: 
gcs_compose_objects(),
gcs_copy_object(),
gcs_delete_object(),
gcs_get_object(),
gcs_list_objects()
Please choose more modern alternatives, such as Google Chrome or Mozilla Firefox.