Add __iter__ and __getitem__ to logical operators in filters

ref:c24a441cb1250d70c8362c8dc82b2bb8287480a4

src/client/filter.py

@@ -40,6 +40,12 @@ def __or__(self, other: FilterCondition):
         self.or_.append(other)
         return self
 
+    def __iter__(self):
+        return iter(self.or_)
+
+    def __getitem__(self, item):
+        return self.or_.__getitem__(item)
+
     @classmethod
     def structure(cls, data):
         return super(FilterCondition, cls).structure(data)
@@ -52,6 +58,12 @@ def __and__(self, other):
         self.and_.append(other)
         return self
 
+    def __iter__(self):
+        return iter(self.and_)
+
+    def __getitem__(self, item):
+        return self.and_.__getitem__(item)
+
     @classmethod
     def structure(cls, data):
         return super(FilterCondition, cls).structure(data)