Errors
- exception SignerError
- Raised when an error is encountered during transaction signing. 
- exception BincodeError
- Raised when the Rust bincode library returns an error during (de)serialization. 
- exception CborError
- Raised when the Rust cbor library returns an error during (de)serialization. 
- exception SerdeJSONError
- Raised when an error is encountered during JSON (de)serialization.