yaml_break_t      566 ext/psych/yaml/api.c yaml_emitter_set_break(yaml_emitter_t *emitter, yaml_break_t line_break)
yaml_break_t     1613 ext/psych/yaml/yaml.h     yaml_break_t line_break;
yaml_break_t     1891 ext/psych/yaml/yaml.h yaml_emitter_set_break(yaml_emitter_t *emitter, yaml_break_t line_break);