func GetInt64Ptr(d *schema.ResourceData, key string) *int64 {
	v, e := d.GetOkExists(key)
	if e {
		return Int64Ptr(int64(v.(int)))
	}
	return nil
}
func GetInt64Ptr(d *schema.ResourceData, key string) *int64 {
	v, e := d.GetOkExists(key)
	if e {
		return Int64Ptr(int64(v.(int)))
	}
	return nil
}
// GetInt64Ptr reads a ResourceData and returns an appropriate *int64 for the
// state of the definition. nil is returned if it does not exist.