grip_json_object_has_value don't work

[SergeyShorokhov]

#include <amxmodx>
#include <json>
#include <grip>

#pragma ctrlchar '\'
new const g_sJSON[] = "{  }";

public plugin_init()
{
///// TEST #1 (native JSON)
    new JSON:pObj = json_parse(g_sJSON);
    server_print(" [Method #1]: json_object_has_value():%i",
        json_object_has_value(pObj, "someKey")
    );

///// TEST #2 (GRip JSON)
    new sErrBuffer[128];
    new GripJSONValue:pObj1 = grip_json_parse_string(g_sJSON, sErrBuffer, charsmax(sErrBuffer));
    server_print(" [Method #2]: grip_json_object_has_value():%i",
        grip_json_object_has_value(pObj1, "someKey")
    );
}

[SergeyShorokhov]

but

will work

[Method #1]: json_object_has_value():1
[Method #2]: grip_json_object_has_value():1