code: func yaml_parser_set_input_string(parser *yaml_parser_t, input []byte) {
  	if parser.read_handler != nil {
  		panic("must set the input source only once")
  	}
  	parser.read_handler = yaml_string_read_handler
  	parser.input = input
  	parser.input_pos = 0
  }
docs: // Set a string input.