The variable name.
The current typed value: boolean, number, or string.
null when the variable has never been defined (via defineVariable) or the SDK is disabled.
Until the first successful fetchVariables, this is the default supplied to defineVariable.
Only scalar variable types are supported (see defineVariable); objects/arrays cannot be
defined through this bridge, so they never appear here either.
The value of a CleverTap Variable (Product Config / Feature Flag) at read/define time.