code: def list_(package='', cyg_arch='x86_64'):
      '''
      List locally installed packages.
  
      package : ''
          package name to check. else all
  
      cyg_arch :
          Cygwin architecture to use
          Options are x86 and x86_64
  
      CLI Example:
  
      .. code-block:: bash
  
          salt '*' cyg.list
      '''
      pkgs = {}
      args = ' '.join(['-c', '-d', package])
      stdout = _cygcheck(args, cyg_arch=cyg_arch)
      lines = []
      if isinstance(stdout, six.string_types):
          lines = salt.utils.stringutils.to_unicode(stdout).splitlines()
      for line in lines:
          match = re.match(r'^([^ ]+) *([^ ]+)', line)
          if match:
              pkg = match.group(1)
              version = match.group(2)
              pkgs[pkg] = version
      return pkgf list_(package='', cyg_arch='x86_64'):
      '''
      List locally installed packages.
  
      package : ''
          package name to check. else all
  
      cyg_arch :
          Cygwin architecture to use
          Options are x86 and x86_64
  
      CLI Example:
  
      .. code-block:: bash
  
          salt '*' cyg.list
      '''
      pkgs = {}
      args = ' '.join(['-c', '-d', package])
      stdout = _cygcheck(args, cyg_arch=cyg_arch)
      lines = []
      if isinstance(stdout, six.string_types):
          lines = salt.utils.stringutils.to_unicode(stdout).splitlines()
      for line in lines:
          match = re.match(r'^([^ ]+) *([^ ]+)', line)
          if match:
              pkg = match.group(1)
              version = match.group(2)
              pkgs[pkg] = version
      return pkgs
docs: List locally installed packages.
  
      package : ''
          package name to check. else all
  
      cyg_arch :
          Cygwin architecture to use
          Options are x86 and x86_64
  
      CLI Example:
  
      .. code-block:: bash
  
          salt '*' cyg.list