chore: ExternalAddress derived Address class (#76)

Author: John-peterson-coinbase

CHANGELOG.md

@@ -1,8 +1,16 @@
 # CDP Python SDK Changelog
 
+## Unreleased
+
+### Added
+
+- `ExternalAddress` derived `Address` class.
+
+
 ## [0.13.0] - 2024-12-19
 
 ### Added
+
 - Add support for fetching address reputation
   - Add `reputation` method to `Address` to fetch the reputation of the address.
 - Add support for registering, updating, and listing smart contracts that are
@@ -12,6 +20,7 @@ deployed external to CDP.
 - Add ability to import WalletData files exported by the NodeJS CDP SDK
 
 ### Deprecated
+
 - Deprecate `Wallet.load_seed` method in favor of `Wallet.load_seed_from_file`
 - Deprecate `Wallet.save_seed` method in favor of `Wallet.save_seed_to_file`
 

cdp/__init__.py

@@ -5,6 +5,7 @@
 from cdp.balance_map import BalanceMap
 from cdp.cdp import Cdp
 from cdp.contract_invocation import ContractInvocation
+from cdp.external_address import ExternalAddress
 from cdp.faucet_transaction import FaucetTransaction
 from cdp.hash_utils import hash_message, hash_typed_data_message
 from cdp.mnemonic_seed_phrase import MnemonicSeedPhrase
@@ -26,6 +27,7 @@
     "BalanceMap",
     "Cdp",
     "ContractInvocation",
+    "ExternalAddress",
     "FaucetTransaction",
     "MnemonicSeedPhrase",
     "PayloadSignature",

cdp/external_address.py

@@ -0,0 +1,5 @@
+from cdp.address import Address
+
+
+class ExternalAddress(Address):
+    """A class representing an external address."""