Custom provider class.

**Signature:**

    export declare class CustomProvider implements AppCheckProvider 

**Implements:** AppCheckProvider

## Constructors

| Constructor | Modifiers | Description |
|---|---|---|
| [(constructor)(_customProviderOptions)](https://firebase.google.com/docs/reference/js/app-check.customprovider#customproviderconstructor) |   | Constructs a new instance of the `CustomProvider` class |

## CustomProvider.(constructor)

Constructs a new instance of the `CustomProvider` class

**Signature:**

    constructor(_customProviderOptions: CustomProviderOptions);

#### Parameters

| Parameter | Type | Description |
|---|---|---|
| _customProviderOptions | [CustomProviderOptions](https://firebase.google.com/docs/reference/js/app-check.customprovideroptions#customprovideroptions_interface) |   |