code: public JBBPDslBuilder BitArray(final JBBPBitNumber bits, final int size) {
      return this.BitArray(null, bits, arraySizeToString(size));
    }
docs: Add anonymous fixed length bit array.
  
  @param bits length of the field, must not be null
  @param size number of elements in array, if negative then till the end of stream
  @return the builder instance, must not be null