Credit Memo webservice payload for many to many application

Summary:

We need the Credit Memo webservice payload for many to many application. This means multiple credit memos are to be applied to multiple invoices. No specification on how much is to be applied to any invoices, but the total credit memo and total invoice amounts net to zero.
ex. CM1 = 73, CM2 = 27, INV1 = 45, INV2 = 55.

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25C

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