Invoice Aggregation Record

This node contains information related to aggregation. This can specify if the invoice is part of an aggregation parent invoice or if it is a parent itself. Contained in https://wordbee.atlassian.net/wiki/spaces/API2/pages/2487255083

`isChild`	True if the invoice was aggregated into a parent invoice.	bool
`isParent`	True if the invoice is an aggregation parent. This means that it aggregates child invoices. An invoice cannot be both isClient and isParent. Note: The invoice document includes references to all child invoices for parents.	bool
`parentInvoiceId`	If the invoice is a child then this is the ID of the parent invoice.	int?
`periodFrom`	The period start of aggregation (year-month-day). Populated with child and parent invoices only.	date
`periodTo`	The period end of aggregation (year-month-day). Populated with child and parent invoices only.	date

EXAMPLES

Example payload:

{
    "isChild": false,
    "isParent": false,
    "parentInvoiceId": null,
    "periodFrom": null,
    "periodTo": null
}

An aggregation parent:

{
    "isChild": false,
    "isParent": true,
    "parentInvoiceId": null,
    "periodFrom": "2020-12-04",
    "periodTo": "2020-12-04"
}

An aggregation child:

{
    "isChild": true,
    "isParent": false,
    "parentInvoiceId": 1835,
    "periodFrom": "2020-12-04",
    "periodTo": "2020-12-04"
}