module-of-variable.json

{
    "type": "Program",
    "body": [
        {
            "type": "ExpressionStatement",
            "expression": {
                "type": "MemberExpression",
                "computed": true,
                "object": {
                    "type": "Identifier",
                    "name": "module"
                },
                "property": {
                    "type": "Identifier",
                    "name": "variable"
                }
            }
        }
    ]
}

require.json

{
  "type": "CallExpression",
  "callee": {
      "type": "Identifier",
      "name": "require"
  },
  "arguments": [
      {
          "type": "Literal",
          "value": "module",
          "raw": "'module'"
      }
  ]
}