type_checker decorator

[bleudev]

type_checker decorator edits function for starting checking for types of arguments and return values when function is calling.

@type_checker
def func(a: int, b: float) -> str: ...

func(1, 2.1) # ok
func(1, '2.1') # TypeError

@type_checker
def func2() -> str:
    return 12

func2() # TypeError