code: def _volume(self, line):
          '''We don't have logic for volume for Singularity, so we add as
             a comment in the install, and a metadata value for the recipe 
             object
    
             Parameters
             ==========
             line: the line from the recipe file to parse to INSTALL
  
          '''
          volumes = self._setup('VOLUME', line)
          if len(volumes) > 0:
              self.volumes += volumes
          return self._comment("# %s" %linef _volume(self, line):
          '''We don't have logic for volume for Singularity, so we add as
             a comment in the install, and a metadata value for the recipe 
             object
    
             Parameters
             ==========
             line: the line from the recipe file to parse to INSTALL
  
          '''
          volumes = self._setup('VOLUME', line)
          if len(volumes) > 0:
              self.volumes += volumes
          return self._comment("# %s" %line)
docs: We don't have logic for volume for Singularity, so we add as
             a comment in the install, and a metadata value for the recipe 
             object
    
             Parameters
             ==========
             line: the line from the recipe file to parse to INSTALL