void encode_xml(const char *name, const char *val, ceph::Formatter *f);
void encode_xml(const char *name, bool val, ceph::Formatter *f);
void encode_xml(const char *name, int val, ceph::Formatter *f);
void encode_xml(const char *name, const char *val, ceph::Formatter *f);
void encode_xml(const char *name, bool val, ceph::Formatter *f);
void encode_xml(const char *name, int val, ceph::Formatter *f);