This PR also removes the validation of variants on the sequence ontology and instead simply validates the coordinates. A convenience function is_valid_for_vcf on added that can be called on a variant object to determine whether or not it can be represented in a VCF. This method also gets called when adding a variant to a VCFWriter object.
This PR also removes the validation of variants on the sequence ontology and instead simply validates the coordinates. A convenience function
is_valid_for_vcfon added that can be called on a variant object to determine whether or not it can be represented in a VCF. This method also gets called when adding a variant to a VCFWriter object.