WithdrawProposalInput
Withdraw the latest version's signature request, on an open or a closed
deal, without reopening it as a draft. basedOn is the version the rep
confirmed: one that changed since is not withdrawn.
- basedType:
On requiredProperties: 2The version a save was edited from, as the last read returned it. A save whose base is no longer the latest is refused, so a second rep cannot silently overwrite the first.
- dealType: string
Id min length:1max length:50requiredThe deal the proposal is for

