[Home](./index.md) > [puppeteer](./puppeteer.md) > [Protocol](./puppeteer.protocol.md) > [Runtime](./puppeteer.protocol.runtime.md) > [PrivatePropertyDescriptor](./puppeteer.protocol.runtime.privatepropertydescriptor.md) > [set](./puppeteer.protocol.runtime.privatepropertydescriptor.set.md) ## Protocol.Runtime.PrivatePropertyDescriptor.set property A function which serves as a setter for the private property, or `undefined` if there is no setter (accessor descriptors only). Signature: ```typescript set?: RemoteObject; ```