code: ReadResult read(long startOffset, int maxLength, Duration timeout) {
          Exceptions.checkNotClosed(this.closed, this);
          Preconditions.checkState(!this.recoveryMode, "StreamSegmentReadIndex is in Recovery Mode.");
          Exceptions.checkArgument(startOffset >= 0, "startOffset", "startOffset must be a non-negative number.");
          Exceptions.checkArgument(maxLength >= 0, "maxLength", "maxLength must be a non-negative number.");
  
          // We only check if we exceeded the last offset of a Sealed Segment. If we attempted to read from a truncated offset
          // that will be handled by returning a Truncated ReadResultEntryType.
          Exceptions.checkArgument(checkReadAvailability(startOffset, true) != ReadAvailability.BeyondLastOffset,
                  "startOffset", "StreamSegment is sealed and startOffset is beyond the last offset of the StreamSegment.");
  
          log.debug("{}: Read (Offset = {}, MaxLength = {}).", this.traceObjectId, startOffset, maxLength);
          return new StreamSegmentReadResult(startOffset, maxLength, this::getMultiReadResultEntry, this.traceObjectId);
      }
docs: Reads a range of bytes from the StreamSegment.
  
  @param startOffset The offset in the StreamSegment where to start reading.
  @param maxLength   The maximum number of bytes to read.
  @param timeout     Timeout for the operation.
  @return A ReadResult containing methods for retrieving the result.
  @throws IllegalStateException    If the read index is in recovery mode.
  @throws IllegalArgumentException If the parameters are invalid.
  @throws IllegalArgumentException If the StreamSegment is sealed and startOffset is beyond its length.