func (c *Collection) Count() (n int, err error) {
	return c.Find(nil).Count()
}
func (c *Collection) Count() (n int, err error) {
	return c.Find(nil).Count()
}
func ( c * Collection ) Count ( ) ( n int , err error ) { return c . Find ( nil ) . Count ( ) }
// Count returns the total number of documents in the collection.
Count returns the total number of documents in the collection .