MessagePack\TypeTransformer\Collection::find PHP Method

    public function find($id)
    {
        if (isset($this->items[$id])) {
            return $this->items[$id];
        }
    }

 public function testAddRemoveFind()
 {
     $id = 5;
     $transformer = $this->getTransformerMock($id);
     $this->coll->add($transformer);
     $this->assertSame($transformer, $this->coll->find($id));
     $this->coll->remove($id);
     $this->assertNull($this->coll->find($id));
 }