Creates a new outgoing transfer

curl --location 'https://my.test-1.account.finlego.com/api/merchant/integration/transfers' \
--header 'Authorization: Bearer <token>' \
--header 'Content-Type: application/json' \
--data '{
    "type": "outgoing",
    "paymentMethod": "sepa",
    "reference": "string",
    "purpose": "string",
    "purposes": {
        "property1": "string",
        "property2": "string"
    },
    "accountId": "3d07c219-0a88-45be-9cfc-91e9d095a1e9",
    "amount": 0,
    "beneficiary": {
        "credentials": {
            "bankDetails": {
                "bankName": "string",
                "bankCountry": "string",
                "bankRegion": "string",
                "bankAddress": "string",
                "bic": "string",
                "intermediaryBic": "string",
                "bankCode": "string",
                "routingNumber": "string",
                "sortCode": "string",
                "branchCode": "string"
            },
            "type": "sepa",
            "iban": "string",
            "reference": "string"
        },
        "legalEntity": {
            "address": {
                "streetLine1": "string",
                "streetLine2": "string",
                "city": "string",
                "state": "string",
                "zip": "string",
                "country": "string"
            },
            "type": "business",
            "legalName": "string"
        }
    },
    "documents": [
        "string"
    ]
}'