Refactor to a helper class for the agent's history (ConversationMemory) (#7008)

Co-authored-by: openhands <openhands@all-hands.dev>
Co-authored-by: Calvin Smith <email@cjsmith.io>

openhands/security/invariant/analyzer.py

@@ -310,7 +310,7 @@ class InvariantAnalyzer(SecurityAnalyzer):
         check_result = self.monitor.check(self.input, input)
         self.input.extend(input)
         risk = ActionSecurityRisk.UNKNOWN
-        
+
         if isinstance(check_result, tuple):
             result, err = check_result
             if err:

openhands/security/invariant/nodes.py

@@ -1,4 +1,5 @@
-from typing import Any, Iterable, Tuple
+from typing import Any, Iterable
+
 from pydantic import BaseModel, Field
 from pydantic.dataclasses import dataclass
 
@@ -31,7 +32,9 @@ class Message(Event):
     content: str | None
     tool_calls: list[ToolCall] | None = None
 
-    def __rich_repr__(self) -> Iterable[Any | tuple[Any] | tuple[str, Any] | tuple[str, Any, Any]]:
+    def __rich_repr__(
+        self,
+    ) -> Iterable[Any | tuple[Any] | tuple[str, Any] | tuple[str, Any, Any]]:
         # Print on separate line
         yield 'role', self.role
         yield 'content', self.content