code: def zest_releaser_check(data):
      
      from zest.releaser.utils import ask
      source_tree = data['workingdir']
      if not is_package(source_tree):
          # You can use zest.releaser on things that are not Python packages.
          # It's pointless to run check-manifest in those circumstances.
          # See https://github.com/mgedmin/check-manifest/issues/9 for details.
          return
      if not ask("Do you want to run check-manifest?"):
          return
      try:
          if not check_manifest(source_tree):
              if not ask("MANIFEST.in has problems. "
                         " Do you want to continue despite that?", default=False):
                  sys.exit(1)
      except Failure as e:
          error(str(e))
          if not ask("Something bad happened. "
                     " Do you want to continue despite that?", default=False):
              sys.exit(2)
docs: Check the completeness of MANIFEST.in before the release.
  
      This is an entry point for zest.releaser.  See the documentation at
      https://zestreleaser.readthedocs.io/en/latest/entrypoints.html