code: def NoExclusions(self):
          
          if len(self.start_bounds) + len(self.target_rs) + len(self.ignored_rs) == 0:
              return BoundaryCheck.chrom == -1
          return False
docs: Determine that there are no exclusion criterion in play
  
          :return: True if there is no real boundary specification of any kind.
  
          Simple method allowing parsers to short circuit the determination of
          missingness, which can be moderately compute intensive.