docs: def print_meminfo(meminfo, widelayout, incolor):
      ''' Memory information output function. '''
      sep = ' '
      # prep Mem numbers
      totl = meminfo.memtotal
      cach = meminfo.cached + meminfo.buffers
      free = meminfo.memfree
      used = meminfo.used
  
      usep = float(used) / totl * 100           # % used of total ram
      cacp = float(cach) / totl * 100           # % cache
      frep = float(free) / totl * 100           # % free
      rlblcolor = ansi.get_label_tmpl(usep, opts.width, opts.hicolor)
  
      # Prepare Swap numbers
      swpt = meminfo.swaptotal
      if swpt:
          swpf = meminfo.swapfree
          swpc = meminfo.swapcached
          swpu = meminfo.swapused
          swfp = float(swpf) / swpt * 100       # % free of total sw
          swcp = float(swpc) / swpt * 100       # % cache
          swup = float(swpu) / swpt * 100       # % used
          slblcolor = ansi.get_label_tmpl(swup, opts.width, opts.hicolor)
      else:
          swpf = swpc = swpu = swfp = swcp = swup = 0         # avoid /0 error
          slblcolor = None
      cacheico = _usedico if incolor else _cmonico
  
      # print RAM info
      data = (
          (_usedico, usep, None,  None, pform.boldbar),       # used
          (cacheico, cacp, ansi.blue,  None, pform.boldbar),  # cache
          (_freeico, frep, None,  None, False),               # free
      )
      if widelayout:
          out(
              fmtstr(_ramico + ' RAM', align='<') +
              fmtstr() +                                      # volume col
              fmtval(totl) +
              fmtval(used, rlblcolor) +
              fmtval(free, rlblcolor)
          )
          # print graph
          ansi.rainbar(data, opts.width, incolor, hicolor=opts.hicolor,
                       cbrackets=_brckico)
          print('', fmtval(cach, swap_clr_templ))
      else:
          out(
              fmtstr(_ramico + ' RAM', align="<") +
              fmtstr() +                                      # volume col
              fmtval(totl) +
              fmtval(used, rlblcolor) +
              fmtval(free, rlblcolor) +
              sep + sep +
              fmtval(cach, swap_clr_templ) + '\n' +
              fmtstr()                                        # blank space
          )
          # print graph
          ansi.rainbar(data, opts.width, incolor, hicolor=opts.hicolor,
                       cbrackets=_brckico)
          print()                             # extra line in narrow layout
  
      # Swap time:
      data = (
          (_usedico, swup, None, None, pform.boldbar),        # used
          (_usedico, swcp, None, None, pform.boldbar),        # cache
          (_freeico, swfp, None, None, False),                # free
      )
      if widelayout:
          out(fmtstr(_diskico + ' SWAP', align='<') + fmtstr())   # label
          if swpt:
              out(
                  fmtval(swpt) +
                  fmtval(swpu, slblcolor) +
                  fmtval(swpf, slblcolor)
              )
          else:
              print(fmtstr(_emptico, dim_templ))
  
          # print graph
          if swpt:
              ansi.rainbar(data, opts.width, incolor, hicolor=opts.hicolor,
                           cbrackets=_brckico)
              if swpc:
                  out(' ' + fmtval(swpc, swap_clr_templ))
              print()
      else:
          out(fmtstr(_diskico + ' SWAP', align='<'))
          if swpt:
              out(
                  fmtstr() +                                  # volume col
                  fmtval(swpt) +
                  fmtval(swpu, slblcolor) +
                  fmtval(swpf, slblcolor)
              )
              if swpc:
                  out('  ' + fmtval(swpc, swap_clr_templ))
              print()
              out(fmtstr())  # blank space
  
              # print graph
              ansi.rainbar(data, opts.width, incolor, hicolor=opts.hicolor,
                           cbrackets=_brckico)
              print()
          else:
              print(' ' + fmtstr(_emptico, dim_templ, align='<'))
          print()
  
      print()