for duplex calling of guppy, needs the output of first round of guppy simplex calling.
pip install duplex-tools
duplex_tools pairs_from_summary /path/to/your/output/basecalled_fastq/sequencing_summary.txt /path/to/your/output/
Above step will generate pair_ids.txt.
duplex_tools filter_pairs /path/to/your/output/pair_ids.txt /path/to/your/simplex_fastq_output/basecalled_fastq
Get pair_ids_filtered.txt, it is for downstream duplex basecalling.