app__routers__invoicing__invoice__invoice_schemas__ReferenceSchema(ReferenceSchema)

{
    "customer_id": 0,
    "sales_rep_id": 0,
    "territory_id": 0,
    "shipping_id": 0,
    "invoice_to_id": 0,
    "project_id": 0,
    "tax_group_id": 0
}