method OutgoingMessage.prototype.setHeader Usageimport { OutgoingMessage } from "node:http"; OutgoingMessage.prototype.setHeader(name: string, value: number | string | readonly string[]): this Sets a single header value. If the header already exists in the to-be-sent headers, its value will be replaced. Use an array of strings to send multiple headers with the same name. Sets a single header value. If the header already exists in the to-be-sent headers, its value will be replaced. Use an array of strings to send multiple headers with the same name. Parameters name: string Header name value: number | string | readonly string[] Header value Return Type this