Wire shapes of the credit balance, purchasable plans and the credit ledger.
Responses come back as plain maps with these string keys.
Summary
Types
@type balance() :: CorvoNfse.Types.Credits.Balance.t()
@type plan() :: CorvoNfse.Types.Credits.Plan.t()
@type plan_quote() :: CorvoNfse.Types.Credits.PlanQuote.t()
@type transaction() :: CorvoNfse.Types.Credits.Transaction.t()