NCBIVariation Spdi To Hgvs

Convert a variant in SPDI notation to HGVS notation using NCBI Variation Services. SPDI (Sequence Position Deletion Insertion) is NCBI's canonical variant representation. Input format: 'SeqID:Position:DeletedSequence:InsertedSequence' (e.g., 'NC_000001.11:230710047:A:G'). Returns the equivalent HGVS genomic description (e.g., 'NC_000001.11:g.230710048A>G'). Note: SPDI uses 0-based interbase coordinates, while HGVS uses 1-based.