This is a list that contains the valid values for granting access to other users (see
Share). If you wish, you can specify access roles using the list values, e.g.,
SharingRole$ReadWrite instead of typing the string "READ_WRITE". This way you can
benefit from autocomplete and not have to remember the valid options.
SharingRoleAn object of class list of length 6.
Owner allows any action including deletion.
ReadWrite or Editor allows modifications to the state, e.g., renaming
and creating data sources from a data store, but *not* deleting the entity.
ReadOnly or Consumer - for data sources, enables creating projects and predictions;
for data stores, allows viewing them only.