The data in the loading JSON example is incorrect

Just below this heading in your reference, there is an example showing how to load data as JSON. This is the example data that is provided to show the format:

{"data": [
  {"xs": {"avg_temperature":20, "humidity": 0.2}, "ys": {"rained": "no"}},
  {"xs": {"avg_temperature":30, "humidity": 0.9}, "ys": {"rained": "yes"}}
] }

However, when testing loading JSON, I found that this data format was not correct. For every item, I would get an error like this: the input label avg_temperature does not exist at row 0. After some experimentation, I found that the data format should instead be something like this:

{"data": [
    {"avg_temperature":20, "humidity": 0.2, "rained" : "no"},
    {"avg_temperature":30, "humidity": 0.9, "rained": "yes"}
] }