Assert checks a condition and quits if it is false.

Check checks a condition and warns if it is false.

DefaultDataDir is the default data directory to use for the databases and other persistence requirements.

Err prints an error and quits.

ErrAssert checks a condition and quits if it is false.

ErrCheck checks for an error and quits if it is present.

ObtainAccount fetches the account for a given address.

ObtainWallet fetches the wallet for a given address.

ObtainWalletAndAccount obtains the wallet and account for an address.

ObtainWallets obtains all known wallets for a given chain.

VerifyPassphrase confirms that a passphrase is correct for an account.

Warn prints a warning.

WarnCheck checks for an error and warns if it is present.