code: def get_random_value(field):
      
      func = get_factory_func(field)
  
      if field.default is not None:
          if callable(field.default):
              return field.default()
          return field.default
  
      if field.choices:
          return random.choice(field.choices)
  
      return func(field)
docs: Calls the dispatch method (``get_factory_func``) and passes the field
      obj argument to the callable returned.
  
      Returns:
          random value depending on field type and constraints in the field
              object