code: public static void initCustomerSession(@NonNull Context context,
                                             @NonNull EphemeralKeyProvider keyProvider) {
          setInstance(new CustomerSession(context, keyProvider));
      }
docs: Create a CustomerSession with the provided {@link EphemeralKeyProvider}.
  
  @param context application context
  @param keyProvider an {@link EphemeralKeyProvider} used to get
  {@link CustomerEphemeralKey EphemeralKeys} as needed