How can we add Payment Item field in document?

[mihir8400]

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Hello, How can we add a Payment Item Field in the document?

in the above Image, they provide payment item fields.

using below code

` $this->authenticate();

    $envelopeApi = new EnvelopesApi($this->apiClient);

    $document = new Document([
        'document_base64' => base64_encode(file_get_contents($documentPath)),
        'name' => 'myDoc.pdf',
        'file_extension' => 'pdf',
        'document_id' => '1'
    ]);

    $signHere = new SignHere([
        'document_id' => '1',
        'page_number' => '9',
        'x_position' => '200',
        'y_position' => '200'
    ]);
     $nameTab = new \DocuSign\eSign\Model\Text([
        'document_id' => '1',
        'page_number' => '9',
        'x_position' => '200',
        'y_position' => '255',
        'tab_label' => 'Printed Name',
        'value' => $recipientName,
        'font' => 'helvetica',
        'font_size' => 'Size12',
        'bold' => 'false',
        'italic' => 'false',
        'underline' => 'false',
        'font_color' => 'Black'
    ]);
     $tabs = new Tabs([
        'sign_here_tabs' => [$signHere],
        'text_tabs' => [$nameTab]
    ]);

$signer = new Signer([ 'email' => $recipientEmail, 'name' => $recipientName, 'recipient_id' => '1', 'tabs' => $tabs, 'client_user_id' => $token ]);

    $envelopeDefinition = new EnvelopeDefinition([
        'email_subject' => 'Please sign document',
        'documents' => [$document],
        'recipients' => ['signers' => [$signer]],
        'status' => 'sent'
    ]);

        $result = $envelopeApi->createEnvelope($this->accountId, $envelopeDefinition);

`

I put the signed and name field in a document. now How can we add a Payment Item Field in the document like a text field and signed field? I want only to save the credit card details of the signer. stripe Payment method