mint/workflows/tmp.py:5:16: error: Unexpected arguments to namedtuple() [misc]
hello_output = typing.NamedTuple("OP", greet=str)
^
mint/workflows/tmp.py: note: In function "say_hello":
mint/workflows/tmp.py:10:12: error: Too many arguments for "hello_output" [call-arg]
return hello_output("hello world")
^