Method constructor

packages/firebase-auth/index.android.ts:822–825

(providerId: string)

	_customProvider: boolean;
	_builder: com.google.firebase.auth.OAuthProvider.Builder;
	constructor(providerId: string) {
		this._providerId = providerId;
		this._customProvider = false;
	}

	get _isCustomProvider() {
		return this._customProvider;