feat: Add crew train cli (#624)

* fix: fix crewai-tools cli command

* feat: add crewai train CLI command

* feat: add the tests

* fix: fix typing hinting issue on code

* fix: test.yml

* fix: fix test

* fix: removed fix since it didnt changed the test

src/crewai/crew.py

@@ -164,7 +164,9 @@ class Crew(BaseModel):
         """Set private attributes."""
         if self.memory:
             self._long_term_memory = LongTermMemory()
-            self._short_term_memory = ShortTermMemory(crew=self, embedder_config=self.embedder)
+            self._short_term_memory = ShortTermMemory(
+                crew=self, embedder_config=self.embedder
+            )
             self._entity_memory = EntityMemory(crew=self, embedder_config=self.embedder)
         return self
 
@@ -280,6 +282,10 @@ class Crew(BaseModel):
 
         return result
 
+    def train(self, n_iterations: int) -> None:
+        # TODO: Implement training
+        pass
+
     def _run_sequential_process(self) -> str:
         """Executes tasks sequentially and returns the final output."""
         task_output = ""