toJson method
Converts the ExtendedKey instance to a JSON map.
Implementation
Map<String, dynamic> toJson() {
return {
'P2PKH': p2pkh,
'P2SH': p2sh,
'P2WPKH': p2wpkh,
'P2WPKH_IN_P2SH': p2wpkhInP2sh,
'P2WSH': p2wsh,
'P2WSH_IN_P2SH': p2wshInP2sh,
};
}