public static extern FLMutableDict FLMutableDict_GetMutableDict(FLMutableDict x, FLSlice key);
public static extern void FLMutableDict_Remove(FLMutableDict x, FLSlice key);
public static extern FLMutableArray FLMutableDict_GetMutableArray(FLMutableDict x, FLSlice key);
public static extern void FLMutableDict_SetValue(FLMutableDict x, FLSlice key, FLValue *value);
public static extern void FLMutableDict_SetData(FLMutableDict x, FLSlice key, FLSlice slice);
public static extern void FLMutableDict_SetString(FLMutableDict x, FLSlice key, FLSlice str);
public static extern void FLMutableDict_SetDouble(FLMutableDict x, FLSlice key, double d);
public static extern void FLMutableDict_SetFloat(FLMutableDict x, FLSlice key, float f);