.clipTranscript         Clip Transcript to Given Length
.fillReduce             Convert GRanges to Single Range
.mutateEach,CompressedGRangesList-method
                        Efficient Metadata Columns Mutation
.propagateMap           Propagate Transcript Merge Map
exportFASTA             Export Transcriptome as FASTA
exportGTF               Export GTF
exportMergeTable        Export Merge Table for Transcriptome
generateMergeTable      Generate Merge Table
truncateTxome           Truncate Transcriptome
txdbToGRangesList       Convert TxDb object to GRangesList
