userLabels property
Labels which have been used to annotate the service-level objective.
Label keys must start with a letter. Label keys and values may contain lowercase letters, numbers, underscores, and dashes. Label keys and values have a maximum length of 63 characters, and must be less than 128 bytes in size. Up to 64 label entries may be stored. For labels which do not have a semantic value, the empty string may be supplied for the label value.
Implementation
core.Map<core.String, core.String>? userLabels;