Failure classes returned by Inttegro resource operations.
Inttegro.Errors.APIError represents an unsuccessful server response,
Inttegro.Errors.TransportError represents an unknown network outcome, and
Inttegro.Errors.DecodingError represents a response that did not match the SDK contract. Match
these classes separately because they require different recovery behavior.
See the Errors and retries guide before adding automatic retries to financial mutations.