make Transfer an alias of ProposedTransaction

Author: szepnapot

iota/transaction/creation.py

@@ -20,6 +20,7 @@
 __all__ = [
   'ProposedBundle',
   'ProposedTransaction',
+  'Transfer',
 ]
 
 
@@ -80,40 +81,11 @@ def as_tryte_string(self):
     return super(ProposedTransaction, self).as_tryte_string()
 
 
-class Transfer(ProposedTransaction):
-  """
-  Follow naming convention of other libs.
-  A transaction that has not yet been attached to the Tangle.
-
-  Provide to :py:meth:`iota.api.Iota.send_transfer` to attach to
-  tangle and publish/store.
-  """
-  def __init__(self, address, value, tag=None, message=None, timestamp=None):
-    # type: (Address, int, Optional[Tag], Optional[TryteString], Optional[int]) -> None
-    if not timestamp:
-      timestamp = get_current_timestamp()
-
-    super(ProposedTransaction, self).__init__(
-      address                     = address,
-      tag                         = Tag(b'') if tag is None else tag,
-      timestamp                   = timestamp,
-      value                       = value,
-
-      # These values will be populated when the bundle is finalized.
-      bundle_hash                 = None,
-      current_index               = None,
-      hash_                       = None,
-      last_index                  = None,
-      signature_message_fragment  = None,
-
-      # These values start out empty; they will be populated when the
-      # node does PoW.
-      branch_transaction_hash     = TransactionHash(b''),
-      nonce                       = Hash(b''),
-      trunk_transaction_hash      = TransactionHash(b''),
-    )
-
-    self.message = TryteString(b'') if message is None else message
+Transfer = ProposedTransaction
+"""
+Follow naming convention of other libs.
+https://github.com/iotaledger/iota.lib.py/issues/72
+"""
 
 
 class ProposedBundle(Bundle, Sequence[ProposedTransaction]):