question

I often use client and server API GetUserData, GetUserReadOnlyData and GetUserInternalData. Does it make a difference in calculating the costs if I call these APIs without specifying keys?

For example, the player has 50 key/value pairs saved in Player Title Data read only. Then the player calls client or server API GetUserReadOnlyData to get only one single key/value pair:

private async Task GetUserReadOnlyData()
{
    var result = await PlayFabClientAPI.GetUserReadOnlyDataAsync(new PlayFab.ClientModels.GetUserDataRequest()
    {
        PlayFabId = PlayerPlayFabID
    });

    if (result.Error != null)
    {
      // Handle error if any
    }
    else
    {
        if (result.Result.Data == null || !result.Result.Data.ContainsKey("Country"))
            Console.WriteLine("No Country");
        else
        {
            if (result.Result.Data.ContainsKey("Country"))
                Console.WriteLine("Country: " + result.Result.Data["Country"].Value);
        }
    }
}

Does it matter if I call:

var result = await PlayFabClientAPI.GetUserReadOnlyDataAsync(new PlayFab.ClientModels.GetUserDataRequest()
    {
        PlayFabId = PlayerPlayFabID
    });

or:

var result = await PlayFabClientAPI.GetUserReadOnlyDataAsync(new PlayFab.ClientModels.GetUserDataRequest()
    {
        PlayFabId = PlayerPlayFabID
        Keys = new List<string> { "Country" }
    });

Will I have more costs if I call GetUserReadOnlyData without specifying the key?