Merge pull request #584 from Chia-Network/altendky-patch-3

add `bytes32.zeros` etc

wheel/python/chia_rs/sized_bytes.py

@@ -5,27 +5,39 @@
 
 class bytes4(SizedBytes):
     _size = 4
-
+    zeros: bytes4
 
 class bytes8(SizedBytes):
     _size = 8
+    zeros: bytes8
 
 
 class bytes32(SizedBytes):
     _size = 32
+    zeros: bytes32
 
 
 class bytes48(SizedBytes):
     _size = 48
+    zeros: bytes48
 
 
 class bytes96(SizedBytes):
     _size = 96
+    zeros: bytes96
 
 
 class bytes100(SizedBytes):
     _size = 100
+    zeros: bytes100
 
 
 class bytes480(SizedBytes):
     _size = 480
+    zeros: bytes480
+
+
+def _add_zeros():
+    for cls in list(globals().values()):
+        if isinstance(cls, type) and cls is not SizedBytes and issubclass(cls, SizedBytes):
+            cls.zeros = cls(b"\x00" * cls._size)