code: func (a *Assertions) InDeltaSlicef(expected interface{}, actual interface{}, delta float64, msg string, args ...interface{}) {
  	if h, ok := a.t.(tHelper); ok {
  		h.Helper()
  	}
  	InDeltaSlicef(a.t, expected, actual, delta, msg, args...)
  }
docs: // InDeltaSlicef is the same as InDelta, except it compares two slices.