public void TryGetFirst_WithNonEmptyEnumerableAndContradictionalLambda_ExpectsFalse() => False(ENMRBL_EMPTY.TryGetFirst(DefaultDelegates.ContradictionalLambda <MultiItems>(), out _));
public void TryGetFirst_WithEmptyEnumerable_ExpectsFalse() => False(ENMRBL_EMPTY.TryGetFirst(DefaultDelegates.TautologicalLambda <MultiItems>(), out _));