# Session Represents an InnerTube session. ## API * Session * [.signIn(credentials?)](#signin) ⇒ `function` * [.signOut()](#signout) ⇒ `function` * [.key](#key) ⇒ `getter` * [.api_version](#api_version) ⇒ `getter` * [.client_version](#client_version) ⇒ `getter` * [.client_name](#client_name) ⇒ `getter` * [.context](#context) ⇒ `getter` * [.player](#player) ⇒ `getter` * [.lang](#lang) ⇒ `getter` ### signIn(credentials?) Signs in with given credentials. **Returns:** `Promise` | Param | Type | Description | | --- | --- | --- | | credentials? | `Credentials` | OAuth credentials | ### signOut() Signs out of the current account. **Returns:** `Promise` ### key InnerTube API key. **Returns:** `string` ### key InnerTube API version. **Returns:** `string` ### client_version InnerTube client version. **Returns:** `string` ### client_name InnerTube client name. **Returns:** `string` ### context InnerTube context. **Returns:** `Context` ### player Player script object. **Returns:** `Player` ### lang Client language. **Returns:** `string`