FaxSubmission.CreateFaxRequest

{
    "clientReference": "string",
    "sender": {
        "email": "string",
        "faxNumber": "string"
    },
    "recipients": [
        {
            "faxNumber": "string"
        }
    ],
    "documents": [
        {
            "sourceUrl": "string",
            "contentBase64": "string",
            "fileName": "string",
            "mediaType": "string"
        }
    ],
    "sendAt": "string",
    "callbackUrl": "string",
    "coverPage": {
        "enabled": true,
        "template": "string",
        "toName": "string",
        "toOrganization": "string",
        "fromName": "string",
        "subject": "string",
        "body": "string"
    },
    "numberOfRetries": 0
}