[Home](./index.md) > [@firebase/analytics-types](./analytics-types.md) > [ControlParams](./analytics-types.controlparams.md) ## ControlParams interface Standard gtag.js control parameters. For more information, see [the gtag.js documentation on parameters](https://developers.google.com/gtagjs/reference/parameter). Signature: ```typescript export interface ControlParams ``` ## Properties | Property | Type | Description | | --- | --- | --- | | [event\_callback](./analytics-types.controlparams.event_callback.md) | () => void | | | [event\_timeout](./analytics-types.controlparams.event_timeout.md) | number | | | [groups](./analytics-types.controlparams.groups.md) | string \| string\[\] | | | [send\_to](./analytics-types.controlparams.send_to.md) | string \| string\[\] | |