
bad_argument.erl:14:1: Function t3/0 has no local return
bad_argument.erl:15:6: Guard test is_map('not_a_map') can never succeed
bad_argument.erl:5:1: Function t/0 has no local return
bad_argument.erl:6:23: A key of type 'b' cannot exist in a map of type #{'a':='q'}
