Unclear from documentation how to set latin1-encoded UserData in autoscaling.create_launch_configuration

[tips-protocol]

I need to set UserData as a latin1 encoded string. If I pass it as a python string in will be converted to bytes-object using encode('utf8') and then base-64 encoded.

The documentation says that UserData can only have type string:
https://boto3.amazonaws.com/v1/documentation/api/latest/reference/services/autoscaling.html#AutoScaling.Client.create_launch_configuration

But according to the code

boto/boto/ec2/autoscale/__init__.py

Line 246 in 91ba037

 if isinstance(user_data, six.text_type): 

I can also pass it as bytes. I suggest updating the documentation to reflect this.