diff --git a/phasmplatform/common/method.py b/phasmplatform/common/method.py
index de2d198..8d4bbc8 100644
--- a/phasmplatform/common/method.py
+++ b/phasmplatform/common/method.py
@@ -1,4 +1,4 @@
-from typing import List
+from typing import Any, List
 
 
 from .valuetype import ValueType
@@ -14,6 +14,12 @@ class MethodArgument:
         self.name = name
         self.value_type = value_type
 
+    def __eq__(self, other: Any) -> bool:
+        if not isinstance(other, MethodArgument):
+            raise NotImplementedError
+
+        return self.name == other.name and self.value_type == other.value_type
+
 
 class Method:
     __slots__ = ('name', 'args', 'return_type', )
diff --git a/phasmplatform/common/valuetype.py b/phasmplatform/common/valuetype.py
index 8d01684..36f544e 100644
--- a/phasmplatform/common/valuetype.py
+++ b/phasmplatform/common/valuetype.py
@@ -1,3 +1,6 @@
+from typing import Any
+
+
 class ValueType:
     __slots__ = ('name', )
 
@@ -6,6 +9,12 @@ class ValueType:
     def __init__(self, name: str) -> None:
         self.name = name
 
+    def __eq__(self, other: Any) -> bool:
+        if not isinstance(other, ValueType):
+            raise NotImplementedError
+
+        return self is other
+
 
 bytes = ValueType('bytes')