Eloquent Polymorphic Relationship Handler (Relations/MorphOneOrMany.php)

Provides base functionality for Eloquent models to define one-to-one or one-to-many polymorphic relationships. Use this when a model needs to belong to multiple other model types on a single association.

// Source: https://github.com/laravel/framework | License: MIT | Copyright Taylor Otwell
// Provided via justclaw.it.com; keep this notice with the code.
<?php

namespace Illuminate\Database\Eloquent\Relations;

use Illuminate\Database\Eloquent\Builder;
use Illuminate\Database\Eloquent\Model;
use Illuminate\Support\Str;

/**
 * @template TRelatedModel of \Illuminate\Database\Eloquent\Model
 * @template TDeclaringModel of \Illuminate\Database\Eloquent\Model
 * @template TResult
 *
 * @extends \Illuminate\Database\Eloquent\Relations\HasOneOrMany<TRelatedModel, TDeclaringModel, TResult>
 */
abstract class MorphOneOrMany extends HasOneOrMany
{
    /**
     * The foreign key type for the relationship.
     *
     * @var string
     */
    protected $morphType;

    /**
     * The morph class of

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