text: var BloomFilter = require('.')
  
  const tweak = BloomFilter.tweak()
  const filter = new BloomFilter(1 << 13, 22, tweak)
  
  filter.add(Buffer.from('some txid'))
  filter.add(Buffer.from('some pubkey'))
  
  console.log(filter.has(Buffer.from('some txid')))
  