DRYify testing of validation errors

[dylanhmorris]

We have this type of check/error message throughout the project. Could be good to write a function for it.

Originally posted by @damonbayer in #342 (comment)

[sbidari]

What would this function look like given the error message for ValueError is different in each instance?

[damonbayer]

Something like

def helpful_type_assertion(value, expected_type, arg_name, context):
    if not isinstance(value, expected_type):
        raise TypeError(f"{arg_name} passed to {context} is expected to be {expected_type}. Got {value} with type {type(value)}")