Required. The instance whose databases should be listed.
Values are of the form `projects/
newBuildergetDescriptorgetPageToken
If non-empty, `page_token` should contain a
[next_page_token][google.spanner.admin.database.v1.Li
getPageTokenBytes
If non-empty, `page_token` should contain a
[next_page_token][google.spanner.admin.database.v1.Li
getParentBytes
Required. The instance whose databases should be listed.
Values are of the form `projects/
isInitializedmakeExtensionsImmutableparseUnknownFieldProto3toBuilder