docs: def convert(self, convert_to=None, 
                        runscript="/bin/bash", 
                        force=False):
  
          '''This is a convenience function for the user to easily call to get
             the most likely desired result, conversion to the opposite format.
             We choose the selection based on the recipe name - meaning that we
             perform conversion with default based on recipe name. If the recipe
             object is DockerRecipe, we convert to Singularity. If the recipe
             object is SingularityRecipe, we convert to Docker. The user can
             override this by setting the variable convert_to
  
             Parameters
             ==========
             convert_to: can be manually forced (docker or singularity)
             runscript: default runscript (entrypoint) to use
             force: if True, override discovery from Dockerfile
  
          '''
          converter = self._get_converter(convert_to)
          return converter(runscript=runscript, force=force)