code: func (c *Runtime) GlobalLexicalScopeNames(executionContextId int) ([]string, error) {
  	var v RuntimeGlobalLexicalScopeNamesParams
  	v.ExecutionContextId = executionContextId
  	return c.GlobalLexicalScopeNamesWithParams(&v)
  }
docs: // GlobalLexicalScopeNames - Returns all let, const and class variables from global scope.
  // executionContextId - Specifies in which execution context to lookup global scope variables.
  // Returns -  names -