Function valueOf

codemods/move-sampling-to-model-options/transform.ts:174–176

* Extract the value expression of a property, expanding shorthand. For a * shorthand `{ temperature }`, the value is the `temperature` Identifier, * which is exactly the reference we want to preserve when relocating.

(prop: Property)

 * which is exactly the reference we want to preserve when relocating.
 */
function valueOf(prop: Property): Property['value'] {
  return prop.value
}

/** The first object-literal argument of a call, or undefined. */
function firstObjectArg(node: CallExpression): ObjectExpression | undefined {