A hash of custom, user-provided web-safe keys and arbitrary string
values that will returned with requests for the file as
"x-goog-meta-" response headers.
Returns
(Hash(String => String))
#metadata=
def metadata=(metadata)
Updates the hash of custom, user-provided web-safe keys and
arbitrary string values that will returned with requests for the
file as "x-goog-meta-" response headers.
Parameter
metadata (Hash(String => String)) — The user-provided metadata,
in key/value pairs.