Remove unwanted libraries and lighten package (#1391)

embedchain/llm/aws_bedrock.py

@@ -23,7 +23,7 @@ class AWSBedrockLlm(BaseLlm):
         except ModuleNotFoundError:
             raise ModuleNotFoundError(
                 "The required dependencies for AWSBedrock are not installed."
-                'Please install with `pip install --upgrade "embedchain[aws-bedrock]"`'
+                "Please install with `pip install boto3==1.34.20`"
             ) from None
 
         self.boto_client = boto3.client("bedrock-runtime", "us-west-2" or os.environ.get("AWS_REGION"))
@@ -38,8 +38,7 @@ class AWSBedrockLlm(BaseLlm):
         }
 
         if config.stream:
-            from langchain.callbacks.streaming_stdout import \
-                StreamingStdOutCallbackHandler
+            from langchain.callbacks.streaming_stdout import StreamingStdOutCallbackHandler
 
             callbacks = [StreamingStdOutCallbackHandler()]
             llm = Bedrock(**kwargs, streaming=config.stream, callbacks=callbacks)