public class MainActivity extends AppCompatActivity
    implements EasyPermissions.PermissionCallbacks {...


// Relevant part of the method of the Interface: EasyPermissions:

EasyPermissions.requestPermissions(
                this,
                "This app needs to access your Google account (via Contacts).",
                REQUEST_PERMISSION_GET_ACCOUNTS,
                Manifest.permission.GET_ACCOUNTS);

ActivityCompat.requestPermissions((FragmentActivity) mHost, mConfig.permissions, mConfig.requestCode);