Paraphraser

Updating GoSungrow

This gist is intended to help you deal with the following error conditions:

• Error: appkey is incorrect 'er_invalid_appkey
• Error: unknown error 'Request is not encrypted'
• nil pointer exceptions while fetching battery information
• missing device_type arguments

This gist has a number of parts which, because of the way in which this gist has grown over time, are not necessarily in a logical order.