@crawlee/coreInterfacesProxyConfigurationFunctionVersion: 3.11ProxyConfigurationFunction CallableProxyConfigurationFunction(sessionId: string | number, options?: { request?: Request<Dictionary> }): null | string | Promise<null | string>ParameterssessionId: string | numberoptionaloptions: { request?: Request<Dictionary> }optionalrequest: Request<Dictionary>Returns null | string | Promise<null | string>