docs: def parse_input(self):
          """
          Go through the user input, get/validate some important values.
          """
          app_split = self.args[0].split('.')
          app = app_split[0]
          model_name = app_split[1].lower()
          
          self.model = get_model(app, model_name)
  
          # String field name to re-generate.
          self.field = self.args[1]