def get_counters():
    """Return a dictionary with the following keys::

             count-objects-checked: count of how many objects were checked
             count-objects-healthy-pre-repair: how many of those objects were
                                               completely healthy (before any
                                               repair)
             count-objects-unhealthy-pre-repair: how many were damaged in
                                                 some way
             count-objects-unrecoverable-pre-repair: how many were unrecoverable
             count-objects-healthy-post-repair: how many of those objects were
                                                completely healthy (after any
                                                repair)
             count-objects-unhealthy-post-repair: how many were damaged in
                                                  some way
             count-objects-unrecoverable-post-repair: how many were
                                                      unrecoverable
             count-repairs-attempted: repairs were attempted on this many
                                      objects. The count-repairs- keys will
                                      always be provided, however unless
                                      repair=true is present, they will all
                                      be zero.
             count-repairs-successful: how many repairs resulted in healthy
                                       objects
             count-repairs-unsuccessful: how many repairs resulted did not
                                         results in completely healthy objects
             count-corrupt-shares-pre-repair: how many shares were found to
                                              have corruption, summed over all
                                              objects examined (before any
                                              repair)
             count-corrupt-shares-post-repair: how many shares were found to
                                               have corruption, summed over all
                                               objects examined (after any
                                               repair)
        """
