docs(README): Update sample code for calling Local Lambda Invoke (aws…

…#584)

README.rst

@@ -263,18 +263,25 @@ configurations):
 .. code:: python
 
    import boto3
-
+   import botocore
+   
    # Set "running_locally" flag if you are running the integration test locally
+   running_locally = True
+   
    if running_locally:
 
        # Create Lambda SDK client to connect to appropriate Lambda endpoint
        lambda_client = boto3.client('lambda',
-                                    endpoint_url="http://127.0.0.1:3001",
-                                    use_ssl=False,
-                                    verify=False,
-                                    config=Config(signature_version=UNSIGNED,
-                                                  read_timeout=0,
-                                                  retries={'max_attempts': 0}))
+           region_name="us-west-2",
+           endpoint_url="http://127.0.0.1:3001",
+           use_ssl=False,
+           verify=False,
+           config=botocore.client.Config(
+               signature_version=botocore.UNSIGNED,
+               read_timeout=0,
+               retries={'max_attempts': 0},
+           )
+       )
    else:
        lambda_client = boto3.client('lambda')