Getting a Type from TypeInfo / Getting Variant Type

[Chirs Forest]

I'm using std.variant.Variant to hold a value of unknown type 
(not a string, could be a numeric type or a container holding 
multiple numeric types). I'm trying to retrieve this value with 
.get!T but I need the type to do that... .type gives me TypeInfo, 
but that's not a type so I'm not sure how to get the type without 
checking the TypeInfo against all possible types (which would be 
a massive pain).