Please try to parse/manipulate/save or whatever the example data that is located in the ./examples subdirectory to see if it works for you.
There's some basic python processing scripts in the ./example_usage folder that might be of use for interpreting things.
There is a commeted version of ./examples/example_wx_uncommented.geojson located at ./examples/example_wx.geojson that has notes about the schema layout that may help.