header.go
func (h *ResponseHeader) SetLastModified(t time.Time) {
	h.bufKV.value = AppendHTTPDate(h.bufKV.value[:0], t)
	h.SetCanonical(strLastModified, h.bufKV.value)
}
func (h *ResponseHeader) SetLastModified(t time.Time) {
	h.bufKV.value = AppendHTTPDate(h.bufKV.value[:0], t)
	h.SetCanonical(strLastModified, h.bufKV.value)
}
func ( h * ResponseHeader ) SetLastModified ( t time . Time ) { h . bufKV . value = AppendHTTPDate ( h . bufKV . value [ : 0 ] , t ) h . SetCanonical ( strLastModified , h . bufKV . value ) }
// SetLastModified sets 'Last-Modified' header to the given value.
SetLastModified sets Last - Modified header to the given value .