import macros import tables macro kwargs(args: varargs[untyped]): untyped = result = newNimNode(nnkTableConstr) for arg in args: expectKind arg, nnkExprEqExpr result.add newColonExpr(arg[0].toStrLit, newCall(bindSym"$", arg[1])) result = newCall(bindSym"toTable", result) proc myFunc(a, b: int, kwargs: Table[string, string]): float = for key, value in kwargs: echo(key, ": ", value) return 10.0 var i = myFunc(45, 78, kwargs(hello="world", name="cyberlis", qwerty="xxxxx"))