-// epair interface
-void SetKeyValue (entity_t *ent, const char *key, const char *value);
-void DeleteKey (entity_t *ent, const char *key);
-const char* ValueForKey (entity_t *ent, const char *key);
-float FloatForKey (entity_t *ent, const char *key);
-int IntForKey (entity_t *ent, const char *key);
-void GetVectorForKey (entity_t *ent, const char *key, vec3_t vec);