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formlyApiCheck

runtime validation

[block:api-header] { "type": "basic", "title": "Internally" } [/block] angular-formly depends on the library [apiCheck](https://github.com/kentcdodds/apiCheck.js) to validate that you're using the functions and directives properly. If not, you will get errors and warnings if you do something wrong. Hopefully these errors and warnings are useful! [block:api-header] { "type": "basic", "title": "Custom apiCheck" } [/block] You can use `apiCheck` to validate the api to your custom types. You can specify an `apiCheck` property on a `type` and a `wrapper`. For more information, see the [formlyConfig](doc:formlyconfig) documentation.