How to get All attribute of questions when submit the form ?

[vivekbinarystorm]

When we submit the form for questions at that time we get only this parameter. if I can add a custom attribute to the quetion then how can I get it?

{
"value": [
"Highly trainable"
],
"isValid": true,
"isAnswered": true,
"isPending": false,
"validationErr": null,
"isCorrectIncorrectScreenDisplayed": false,
"isLocked": false,
"blockName": "multiple-choice"
}

Custom attribute:

{
  name: "multiple-choice",
  id: "1",
  attributes: {
    required: true,
    label: "How trainable do you want your dog to be?",
    choices: [
      {
        label: "Highly trainable",
        value: "Highly trainable",
        id: "Highly trainable",
      },
      {
        label: "Easily trainable",
        value: "Easily trainable",
        id: "Easily trainable"
      },
   ]
  }
},