code: function publicToAddress(publicKey) {
    if (!Buffer.isBuffer(publicKey)) { throw new Error('[ethjs-account] public key must be a buffer object in order to get public key address'); }
  
    return getAddress(sha3(publicKey, true).slice(12).toString('hex'));
  }
docs: Returns the Ethereum standard address of a public sepk key.
  
  @method publicToAddress
  @param {Object} publicKey a single public key Buffer object
  @returns {String} address the 20 byte Ethereum address