code: def _env(self, line):
          '''env will parse a line that beings with ENV, indicative of one or
             more environment variables.
   
             Parameters
             ==========
             line: the line from the recipe file to parse for ADD
     
          '''
          line = self._setup('ENV', line)
  
          # Extract environment (list) from the line
          environ = parse_env(line)
  
          # Add to global environment, run during install
          self.install += environ
  
          # Also define for global environment
          self.environ += envirof _env(self, line):
          '''env will parse a line that beings with ENV, indicative of one or
             more environment variables.
   
             Parameters
             ==========
             line: the line from the recipe file to parse for ADD
     
          '''
          line = self._setup('ENV', line)
  
          # Extract environment (list) from the line
          environ = parse_env(line)
  
          # Add to global environment, run during install
          self.install += environ
  
          # Also define for global environment
          self.environ += environ
docs: env will parse a line that beings with ENV, indicative of one or
             more environment variables.
   
             Parameters
             ==========
             line: the line from the recipe file to parse for ADD