Procedure... proc getlabel(stream=stdin, terminator="&"): seq[string] =
Template.... proc group[T](fn: proc: T, groupsize: int): seq[T] =
Compile error: var x = group[seq[string]](getx, 2)
Working call:  var x = group[seq[string]](proc: seq[string] = getx(), 2)
Can anyone explain why using getx directly doesn't work please ? The error is

Error: type mismatch: got (proc (stream: File, terminator: string): seq[string]{.noSideEffect, gcsaf\
e, locks: 0.}, int literal(2))
but expected one of:
proc (fn: proc (): seq[string]{.closure.}, groupsize: int): seq[seq[string]]{.gcsafe, locks: 0.}