text: 'use strict'
  
  module.exports = {
    prefix (contents, count) {
      let start
  
      if (count <= 0xf) { // fixarray
        start = 4
        contents.fill(0x90 + count, 4, 5)
      } else if (count <= 0xffff) { // array 16
        start = 2
        contents.fill(0xdc, 2, 3)
        contents.writeUInt16BE(count, 3)
      } else { // array 32
        start = 0
        contents.fill(0xdd, 0, 1)
        contents.writeUInt32BE(count, 1)
      }
  
      return [contents.slice(start)]
    }
  }
  