Hubspot API undocumented “Options” format

HubSpot documentation ignores how to format the "Options" field in their API calls.

Their examples always leave it empty.

It returns an “Incorrect JSON format” error straight from Java if you try to pass an array of values.

The correct format is

[
{
u’description’:None,
u’value’:u’WALNUT & LEATHER iPHONE CASE’,
u’label’:u’WALNUT & LEATHER iPHONE CASE’,
u’readOnly’:None,
u’hidden’:False,
u’displayOrder’:-1,
u’doubleData’:None
}
]

I’m not sure what doubleData does.