src/vs/workbench/contrib/terminal/browser/remotePty.ts/RemotePty/freePortKillProcess
class RemotePty:	freePortKillProcess(port: string): Promise<{ port: string; processId: string }> {
		if (!this._remoteTerminalChannel.freePortKillProcess) {
			throw new Error('freePortKillProcess does not exist on the local pty service');
		}
		return this._remoteTerminalChannel.freePortKillProcess(port);
	}