code: def main_executable_region_limbos_contain(self, addr):
          
  
          TOLERANCE = 64
  
          closest_region = None
          least_limbo = None
  
          for start, end in self.main_executable_regions:
              if start - TOLERANCE <= addr < start:
                  if least_limbo is None or start - addr < least_limbo:
                      closest_region = (True, start)
                      least_limbo = start - addr
              if end <= addr < end + TOLERANCE:
                  if least_limbo is None or addr - end < least_limbo:
                      closest_region = (True, end)
                      least_limbo = addr - end
  
          if closest_region is not None:
              return closest_region
          return (False, None)
docs: Sometimes there exists a pointer that points to a few bytes before the beginning of a section, or a few bytes
          after the beginning of the section. We take care of that here.
  
          :param int addr: The address to check.
          :return: A 2-tuple of (bool, the closest base address)
          :rtype: tuple