action sinao_app_documents_sales_invoices_nextnumber {
  label: "Get the next invoice number for preview"
  description: ""
  provider: sinao
  method: GET
  path: "/apps/{appId}/invoices/nextnumber"
  encoding: json
  input: {
    type: "object"
    properties: {
      written_at: {
        type: "string"
        format: "date-time"
      }
    }
    additionalProperties: false
  }
  output: {
    type: "object"
    additionalProperties: true
  }
}