Payment Field Type id string customer_id string transaction_id optional string status PaymentStatus amount int64 amount_paid int64 currency string method string checkout_url optional string customer_name optional string billing_address_line1 optional string billing_address_line2 optional string billing_city optional string billing_postal_code optional string billing_country optional string reference_number optional string description optional string due_date optional int64 paid_at optional int64 created_at int64 updated_at int64 customer_title optional string customer_reference_number optional string