Initialize with a complete file path name to the tabix-indexed file The tabix index (.tbi) must already exist alongside
region(r) returns an InputRange that iterates through rows of the file intersecting or contained within the requested range
tbx.d: const(char **) tbx_seqnames(tbx_t *tbx, int *n); // free the array but not the values
Encapsulates a position-sorted record-oriented NGS flat file, indexed with Tabix, including BED, GFF3, VCF.
region(string r) returns an InputRange that iterates through rows of the file intersecting or contained within the requested range