Adding long term, short term, entity and contextual memory

src/crewai/memory/long_term/long_term_memory.py

@@ -0,0 +1,32 @@
+from typing import Any, Dict
+
+from crewai.memory.long_term.long_term_memory_item import LongTermMemoryItem
+from crewai.memory.memory import Memory
+from crewai.memory.storage.ltm_sqlite_storage import LTMSQLiteStorage
+
+
+class LongTermMemory(Memory):
+    """
+    LongTermMemory class for managing cross runs data related to overall crew's
+    execution and performance.
+    Inherits from the Memory class and utilizes an instance of a class that
+    adheres to the Storage for data storage, specifically working with
+    LongTermMemoryItem instances.
+    """
+
+    def __init__(self):
+        storage = LTMSQLiteStorage()
+        super().__init__(storage)
+
+    def save(self, item: LongTermMemoryItem) -> None:
+        metadata = item.metadata
+        metadata.update({"agent": item.agent, "expected_output": item.expected_output})
+        self.storage.save(
+            task_description=item.task,
+            score=metadata["quality"],
+            metadata=metadata,
+            datetime=item.datetime,
+        )
+
+    def search(self, task: str) -> Dict[str, Any]:
+        return self.storage.load(task)

src/crewai/memory/long_term/long_term_memory_item.py

@@ -0,0 +1,19 @@
+from typing import Any, Dict, Union
+
+
+class LongTermMemoryItem:
+    def __init__(
+        self,
+        agent: str,
+        task: str,
+        expected_output: str,
+        datetime: str,
+        quality: Union[int, float] = None,
+        metadata: Dict[str, Any] = None,
+    ):
+        self.task = task
+        self.agent = agent
+        self.quality = quality
+        self.datetime = datetime
+        self.expected_output = expected_output
+        self.metadata = metadata if metadata is not None else {}