--- sidebar_label: CDPSession.send --- # CDPSession.send() method #### Signature: ```typescript class CDPSession { abstract send<T extends keyof ProtocolMapping.Commands>( method: T, params?: ProtocolMapping.Commands[T]['paramsType'][0], options?: CommandOptions ): Promise<ProtocolMapping.Commands[T]['returnType']>; } ``` ## Parameters <table><thead><tr><th> Parameter </th><th> Type </th><th> Description </th></tr></thead> <tbody><tr><td> method </td><td> T </td><td> </td></tr> <tr><td> params </td><td> ProtocolMapping.Commands\[T\]\['paramsType'\]\[0\] </td><td> _(Optional)_ </td></tr> <tr><td> options </td><td> [CommandOptions](./puppeteer.commandoptions.md) </td><td> _(Optional)_ </td></tr> </tbody></table> **Returns:** Promise<ProtocolMapping.Commands\[T\]\['returnType'\]>