whole_func_string: function importSpecifier(name, def) {
      return {
          type: def === true ? 'ImportDefaultSpecifier' : 'ImportSpecifier',
          id: {
              type: 'Identifier',
              name: name
          },
          name: null
      };
  }
func_code_string: function importSpecifier(name, def) {
      return {
          type: def === true ? 'ImportDefaultSpecifier' : 'ImportSpecifier',
          id: {
              type: 'Identifier',
              name: name
          },
          name: null
      };
  }
func_documentation_string: Couldn't figure out b.importSpecifier