@type t() :: %BexioApiClient.Accounting.BusinessYear{
  closed_at: Date.t() | nil,
  end: Date.t(),
  id: integer(),
  start: Date.t(),
  status: :open | :closed
}

Bexio Business Year

Fields:

• :id - automatic id given by bexio
• :start - Start date of the business year
• :end - End date of the business year
• :status - status of the business year (:open or :closed)
• :closed_at - date when the business year was closed, nil while it is open