src/Eager.php
public function delete($id)
    {
        if ($this->contains($id)) {
            $this->isDirty = true;
            unset($this->content[$id]);
            return true;
        }

        return false;
    }
public function delete($id)
    {
        if ($this->contains($id)) {
            $this->isDirty = true;
            unset($this->content[$id]);
            return true;
        }

        return false;
    }
{@inheritdoc}