func (a Args) Last() interface{} {
	if len(a) > 0 {
		return a[len(a)-1]
	}
	return nil
}
// Last returns last element.
Last returns last element.
// Last returns last element .
func (a Args) Last() interface{} {
	if len(a) > 0 {
		return a[len(a)-1]
	}
	return nil
}
func ( a Args ) Last ( ) interface { } { if len ( a ) > 0 { return a [ len ( a ) - 1 ] } return nil }
Last returns last element.
Last returns last element .