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This module was renamed to disambiguate the term tuple, use std.meta instead.

Source: std/typetuple.d

alias TypeTuple = std.meta.AliasSeq(TList...);
Alternate name for std.meta.AliasSeq for legacy compatibility.
import std.typetuple;
alias TL = TypeTuple!(int, double);

int foo(TL td)  // same as int foo(int, double);
    return td[0] + cast(int) td[1];
alias TL = TypeTuple!(int, double);

alias Types = TypeTuple!(TL, char);
static assert(is(Types == TypeTuple!(int, double, char)));