purpose property

@override Bip49 get purpose

derive purpose

Implementation

@override
Bip49 get purpose {
  if (!isLevel(Bip44Levels.master)) {
    throw Bip44DepthError(
        "Current depth (${bip32.depth.toInt()}) is not suitable for deriving purpose");
  }
  return Bip49._(bip32.childKey(Bip49Const.purpose), coinConf);
}