int git_signature__parse(git_signature *sig, const char **buffer_out, const char *buffer_end, const char *header, char ender);
void git_signature__writebuf(git_buf *buf, const char *header, const git_signature *sig);
int git_signature__parse(git_signature *sig, const char **buffer_out, const char *buffer_end, const char *header, char ender);
void git_signature__writebuf(git_buf *buf, const char *header, const git_signature *sig);