Braintree\UsBankAccount::sale PHP Method

    public static function sale($token, $transactionAttribs)
    {
        $transactionAttribs['options'] = ['submitForSettlement' => true];
        return Configuration::gateway()->usBankAccount()->sale($token, $transactionAttribs);
    }

 public function testSale_createsASaleUsingGivenToken()
 {
     $customer = Braintree\Customer::createNoValidate();
     $http = new HttpClientApi(Braintree\Configuration::$global);
     $nonce = Test\Helper::generateValidUsBankAccountNonce();
     $result = Braintree\PaymentMethod::create(['customerId' => $customer->id, 'paymentMethodNonce' => $nonce]);
     $result = Braintree\UsBankAccount::sale($result->paymentMethod->token, ['merchantAccountId' => 'us_bank_merchant_account', 'amount' => '100.00']);
     $this->assertTrue($result->success);
     $transaction = $result->transaction;
     $this->assertEquals(Braintree\Transaction::SETTLEMENT_PENDING, $transaction->status);
     $this->assertEquals(Braintree\Transaction::SALE, $transaction->type);
     $this->assertEquals('100.00', $transaction->amount);
     $this->assertEquals('021000021', $transaction->usBankAccount->routingNumber);
     $this->assertEquals('1234', $transaction->usBankAccount->last4);
     $this->assertEquals('checking', $transaction->usBankAccount->accountType);
     $this->assertEquals('PayPal Checking - 1234', $transaction->usBankAccount->accountDescription);
     $this->assertEquals('Dan Schulman', $transaction->usBankAccount->accountHolderName);
     $this->assertRegExp('/CHASE/', $transaction->usBankAccount->bankName);
 }