docs: def _member_def(self, member):
          """
          Return an individual member definition formatted as an RST glossary
          entry, wrapped to fit within 78 columns.
          """
          member_docstring = textwrap.dedent(member.docstring).strip()
          member_docstring = textwrap.fill(
              member_docstring, width=78, initial_indent=' '*4,
              subsequent_indent=' '*4
          )
          return '%s\n%s\n' % (member.name, member_docstring)