# Function: doesCollectionFollowInvoiceProtocol()

> **doesCollectionFollowInvoiceProtocol**(`collection`): `boolean`

Defined in: [packages/bitbadgesjs-sdk/src/core/invoices.ts:6](https://github.com/BitBadges/bitbadgesjs/blob/master/packages/bitbadgesjs-sdk/src/core/invoices.ts#L6)

## Parameters

### collection

`Readonly`\<[`iCollectionDoc`](https://docs.bitbadges.io/sdk/reference/interfaces/i-collection-doc)\<`bigint`\>\>

## Returns

`boolean`