code: def _is_builtin_scalar(typename):
      return typename in _builtin_scalars
  
imports: from ..language.printer import print_ast
  from ..type.definition import GraphQLEnumType, GraphQLInputObjectType, GraphQLInterfaceType, GraphQLObjectType, GraphQLScalarType, GraphQLUnionType
  from ..type.directives import DEFAULT_DEPRECATION_REASON
  from .ast_from_value import ast_from_value
label_desc: Use image node_id 6 for calling a global function with example usage: _is_builtin_scalar(typename) and returns: unknown