WrongReturnTypeForUnion
The Union type cannot be resolved because it’s not a field.
Constructor:
Signature:
def __init__(self, field_name: str, result_type: str) -> None:  ...Parameters:
-  
field_name:- Type
 -  
str 
 -  
result_type:- Type
 -  
str 
 
The Union type cannot be resolved because it’s not a field.
def __init__(self, field_name: str, result_type: str) -> None:  ... field_name:   
str    result_type:   
str