code: def pop(lst):
      if lst:
          lst.pop()
  
imports: from ..language import visitor_meta
  from ..type.definition import GraphQLInputObjectType, GraphQLList, get_named_type, get_nullable_type, is_composite_type
  from .get_field_def import get_field_def
  from .type_from_ast import type_from_ast
label_desc: Use image node_id 1 for calling a global function with example usage: pop(lst) without return types