whichConsistencySelector method
Implementation
TransactionOptions_ReadOnly_ConsistencySelector whichConsistencySelector() =>
_TransactionOptions_ReadOnly_ConsistencySelectorByTag[$_whichOneof(0)]!;
TransactionOptions_ReadOnly_ConsistencySelector whichConsistencySelector() =>
_TransactionOptions_ReadOnly_ConsistencySelectorByTag[$_whichOneof(0)]!;