feat: implemented pruning/mapping conversation manager

Author: Ro-ee Tal

src/strands/experimental/__init__.py

@@ -6,4 +6,14 @@
 from . import tools
 from .agent_config import config_to_agent
 
-__all__ = ["config_to_agent", "tools"]
+
+# Lazy import to avoid circular dependency
+def __getattr__(name: str) -> object:
+    if name == "conversation_manager":
+        from . import conversation_manager
+
+        return conversation_manager
+    raise AttributeError(f"module {__name__!r} has no attribute {name!r}")
+
+
+__all__ = ["config_to_agent", "tools", "conversation_manager"]

src/strands/experimental/conversation_manager/__init__.py

@@ -0,0 +1,16 @@
+"""Experimental conversation management strategies.
+
+This module implements experimental conversation managers that are subject to change.
+"""
+
+from .mapping_conversation_manager import (
+    LargeToolResultMapper,
+    MappingConversationManager,
+    MessageMapper,
+)
+
+__all__ = [
+    "MappingConversationManager",
+    "MessageMapper",
+    "LargeToolResultMapper",
+]