context.go
func (ctx *Context) GetCookieInt64(name string) int64 {
	return com.StrTo(ctx.GetCookie(name)).MustInt64()
}
func (ctx *Context) GetCookieInt64(name string) int64 {
	return com.StrTo(ctx.GetCookie(name)).MustInt64()
}
// GetCookieInt64 returns cookie result in int64 type.