code: function createPQInnerData(context) {
      var resPQ = context.resPQ;
      var newNonce = utility.createNonce(32);
      var pqInnerData = new mtproto.type.P_q_inner_data({
          props: {
              pq: resPQ.pq,
              p: context.pBuffer,
              q: context.qBuffer,
              nonce: resPQ.nonce,
              server_nonce: resPQ.server_nonce,
              new_nonce: newNonce
          }
      }).serialize();
      context.pqInnerData = pqInnerData;
      context.newNonce = newNonce;
      return context;
  }
docs: Create the pq_inner_data buffer