A class, that represent a cached set of availability intervals. One can use the getIsWorking method
to determine if this set intervals represents working time or non-working.
Returns the working status of this intervals set. It is determined as a working status
of the most prioritized interval (intervals are prioritized from child to parent)
A class, that represent a cached set of availability intervals. One can use the getIsWorking method to determine if this set intervals represents working time or non-working.