code: def non_input_type_on_variable_message(variable_name, type_name):
      return 'Variable "${}" cannot be non-input type "{}".'.format(
          variable_name, type_name
      )
  
file_path: wandb/wandb/vendor/graphql-core-1.1/wandb_graphql/validation/rules/variables_are_input_types.py
imports: from ...error import GraphQLError
  from ...language.printer import print_ast
  from ...type.definition import is_input_type
  from ...utils.type_from_ast import type_from_ast
  from .base import ValidationRule
label_desc: Use image node_id 2 for calling the VariablesAreInputTypes obj's underlying member method code with example usage: obj.non_input_type_on_variable_message(variable_name, type_name) and returns: str