Passed through to simple.param. This includes at least "name", and optionally
"label", "description" and "value" (which should be either TRUE or FALSE),
but not "type".
Value
An AnalysisPageParam
Details
Build a boolean AnalysisPageParam. This is probably rendered as a checkbox. The value returned to
the server should be either JSON "true" (corresponding to checked) or JSON "false".
If you do not provide a value (or if you provide value="", which is what happens in the parent
constructor simple.param when you don't provide a value) then the default will be FALSE.