customTime property
Updates the objects Custom-Time fixed metadata.
Unset values in the request are ignored. To clear the metadata, set an
empty value. The time must be specified in RFC 3339 format, for example
YYYY-MM-DD'T'HH:MM:SS'Z' or YYYY-MM-DD'T'HH:MM:SS.SS'Z'. For details,
see
[Custom-Time](https://cloud.google.com/storage/docs/metadata#custom-time).
Optional.
Implementation
core.String? customTime;