docs: def vmstats():
      '''
      .. versionchanged:: 2016.3.2
          Return the virtual memory stats for this minion
  
      .. versionchanged:: 2016.11.4
          Added support for AIX
  
      CLI Example:
  
      .. code-block:: bash
  
          salt '*' status.vmstats
      '''
      def linux_vmstats():
          '''
          linux specific implementation of vmstats
          '''
          ret = {}
          try:
              with salt.utils.files.fopen('/proc/vmstat', 'r') as fp_:
                  stats = salt.utils.stringutils.to_unicode(fp_.read())
          except IOError:
              pass
          else:
              for line in stats.splitlines():
                  if not line:
                      continue
                  comps = line.split()
                  ret[comps[0]] = _number(comps[1])
          return ret
  
      def generic_vmstats():
          '''
          generic implementation of vmstats
          note: works on FreeBSD, SunOS and OpenBSD (possibly others)
          '''
          ret = {}
          for line in __salt__['cmd.run']('vmstat -s').splitlines():
              comps = line.split()
              if comps[0].isdigit():
                  ret[' '.join(comps[1:])] = _number(comps[0].strip())
          return ret
  
      # dict that returns a function that does the right thing per platform
      get_version = {
          'Linux': linux_vmstats,
          'FreeBSD': generic_vmstats,
          'OpenBSD': generic_vmstats,
          'SunOS': generic_vmstats,
          'AIX': generic_vmstats,
      }
  
      errmsg = 'This method is unsupported on the current operating system!'
      return get_version.get(__grains__['kernel'], lambda: errmsg)()