actual-a-equal-4.json

{
    "type": "Program",
    "body": [
      {
        "type": "ExpressionStatement",
        "expression": {
          "type": "AssignmentExpression",
          "operator": "=",
          "left": {
            "type": "Identifier",
            "name": "a"
          },
          "right": {
            "type": "Literal",
            "value": 4
          }
        }
      }
    ]
  }