InitConfig adds the chain-id, encoding and output flags to the persistent flag set.

KeyCommands registers a subtree of commands to interact with local private key storage.

UnsafeExportEthKeyCommand exports a key with the given name as a private key in hex format.

UnsafeImportKeyCommand imports private keys from a keyfile.

ValidateChainID wraps a cobra command with a RunE function with base 10 integer chain-id verification.