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You're looking for a JSON to VCF (Variant Call Format) converter and an informative paper on the topic. Here's some information: json to vcf converter
VCF is a file format used to store genetic variation data, such as single nucleotide polymorphisms (SNPs), insertions, deletions, and structural variations. It's a widely-used format in genomics and genetics research. References: You're looking for a JSON to VCF
# Create a VCF writer vcf_writer = vcf.Writer(open('output.vcf', 'w'), vcf.VCFHeader()) such as single nucleotide polymorphisms (SNPs)