deriveBaseAddress method
Implementation
Bip32KeyPair deriveBaseAddress(
{int purpose = defaultPurpose, int coinType = defaultCoinType}) {
final rootKeys =
Bip32KeyPair(privateKey: _rootSigningKey, publicKey: rootVerifyKey);
final pair0 = derive(keys: rootKeys, index: purpose);
return derive(keys: pair0, index: coinType);
}