Merge pull request #1576 from crytic/dev-improve-type-alias

Add type to type_alias

slither/core/solidity_types/type_alias.py

@@ -15,6 +15,18 @@ class TypeAlias(Type):
         self.name = name
         self.underlying_type = underlying_type
 
+    @property
+    def type(self) -> Type:
+        """
+        Return the underlying type. Alias for underlying_type
+
+
+        Returns:
+            Type: the underlying type
+
+        """
+        return self.underlying_type
+
     @property
     def storage_size(self) -> Tuple[int, bool]:
         return self.underlying_type.storage_size