added the TransactionSchema class to transaction file for simplicity

main.py

@@ -1,7 +1,6 @@
 import os
 import asyncio
-from src.transaction import Transaction
-from src.schema import TransactionSchema
+from src.transaction import Transaction, TransactionSchema
 from src.validation import validate_transactions
 from src.mine import Mine
 

src/transaction.py

@@ -1,7 +1,21 @@
+from marshmallow import Schema, fields, post_load
 
+class TransactionSchema(Schema):
+    version = fields.Int(required=True)
+    locktime = fields.Int(required=True)
+    vin = fields.List(fields.Dict(), required=True)
+    vout = fields.List(fields.Dict(), required=True)
+
+    @post_load
+    def make_transaction(self, data, **kwargs):
+        return Transaction(**data)
 
 class Transaction:
     """
     This class holds method for managing transactions
     """
-    pass
+    def __init__(self, version, locktime, vin, vout) -> None:
+        self.version = version
+        self.locktime = version
+        self.vin = vin
+        self.vout = vout