_linters/src/gopkg.in/yaml.v2/apic.go
func yaml_emitter_set_output_writer(emitter *yaml_emitter_t, w io.Writer) {
	if emitter.write_handler != nil {
		panic("must set the output target only once")
	}
	emitter.write_handler = yaml_writer_write_handler
	emitter.output_writer = w
}
func yaml_emitter_set_output_writer(emitter *yaml_emitter_t, w io.Writer) {
	if emitter.write_handler != nil {
		panic("must set the output target only once")
	}
	emitter.write_handler = yaml_writer_write_handler
	emitter.output_writer = w
}
// Set a file output.