code: def ensure_least_updates_possible(self):
          
          constraints = self.get_constraints()
          can_use_original = True
          can_use_updated = True
          satisfied_by_versions = set()
          for constraint in constraints:
              if not constraint.specifier.contains(self.original_version):
                  self.can_use_original = False
              if not constraint.specifier.contains(self.updated_version):
                  self.can_use_updated = False
              satisfied_by_value = getattr(constraint, "satisfied_by", None)
              if satisfied_by_value:
                  satisfied_by = "{0}".format(
                      self.clean_specifier(str(satisfied_by_value.version))
                  )
                  satisfied_by_versions.add(satisfied_by)
          if can_use_original:
              self.entry_dict = self.lockfile_dict.copy()
          elif can_use_updated:
              if len(satisfied_by_versions) == 1:
                  self.entry_dict["version"] = next(iter(
                      sat_by for sat_by in satisfied_by_versions if sat_by
                  ), None)
                  hashes = None
                  if self.lockfile_entry.specifiers == satisfied_by:
                      ireq = self.lockfile_entry.as_ireq()
                      if not self.lockfile_entry.hashes and self.resolver._should_include_hash(ireq):
                          hashes = self.resolver.get_hash(ireq)
                      else:
                          hashes = self.lockfile_entry.hashes
                  else:
                      if self.resolver._should_include_hash(constraint):
                          hashes = self.resolver.get_hash(constraint)
                  if hashes:
                      self.entry_dict["hashes"] = list(hashes)
                      self._entry.hashes = frozenset(hashes)
          else:
              # check for any parents, since they depend on this and the current
              # installed versions are not compatible with the new version, so
              # we will need to update the top level dependency if possible
              self.check_flattened_parents()
docs: Mutate the current entry to ensure that we are making the smallest amount of
          changes possible to the existing lockfile -- this will keep the old locked
          versions of packages if they satisfy new constraints.
  
          :return: None