let empty_vcf = "##fileformat=VCFv4.1
##source=VarScan2
##INFO=<ID=DP,Number=1,Type=Integer,Description=\"Total depth of quality bases\">
##INFO=<ID=SOMATIC,Number=0,Type=Flag,Description=\"Indicates if record is a somatic mutation\">
##INFO=<ID=SS,Number=1,Type=String,Description=\"Somatic status of variant (0=Reference,1=Germline,2=Somatic,3=LOH, or 5=Unknown)\">
##INFO=<ID=SSC,Number=1,Type=String,Description=\"Somatic score in Phred scale (0-255) derived from somatic p-value\">
##INFO=<ID=GPV,Number=1,Type=Float,Description=\"Fisher's Exact Test P-value of tumor+normal versus no variant for Germline calls\">
##INFO=<ID=SPV,Number=1,Type=Float,Description=\"Fisher's Exact Test P-value of tumor versus normal for Somatic/LOH calls\">
##FILTER=<ID=str10,Description=\"Less than 10% or more than 90% of variant supporting reads on one strand\">
##FILTER=<ID=indelError,Description=\"Likely artifact due to indel reads at this position\">
##FORMAT=<ID=GT,Number=1,Type=String,Description=\"Genotype\">
##FORMAT=<ID=GQ,Number=1,Type=Integer,Description=\"Genotype Quality\">
##FORMAT=<ID=DP,Number=1,Type=Integer,Description=\"Read Depth\">
##FORMAT=<ID=RD,Number=1,Type=Integer,Description=\"Depth of reference-supporting bases (reads1)\">
##FORMAT=<ID=AD,Number=1,Type=Integer,Description=\"Depth of variant-supporting bases (reads2)\">
##FORMAT=<ID=FREQ,Number=1,Type=String,Description=\"Variant allele frequency\">
##FORMAT=<ID=DP4,Number=1,Type=String,Description=\"Strand read counts: ref/fwd, ref/rev, var/fwd, var/rev\">
#CHROM\tPOS\tID\tREF\tALT\tQUAL\tFILTER\tINFO\tFORMAT\tNORMAL\tTUMOR
"