BoolToYN converts a boolean to "yes" or "no".

ErrorfOrEmpty returns a message if the error is not nil.

FormatErrorfOrEmpty returns a formatted message if the error is not nil.

FormatLabels formats labels into a slice of "key: value".

GetPrivateKey fetch or generates an ethereum private key.

StringsToLabels converts a "key=value,key2=value2" into a slice of labels.

YNToBool converts a yes/no to bool.