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<?php

declare (strict_types=1);
namespace WPForms\Vendor\Square\Models;

use stdClass;
/**
 * Represents a query, consisting of specified query expressions, used to search for subscriptions.
 */
class SearchSubscriptionsQuery implements \JsonSerializable
{
    /**
     * @var SearchSubscriptionsFilter|null
     */
    private $filter;
    /**
     * Returns Filter.
     * Represents a set of query expressions (filters) to narrow the scope of targeted subscriptions
     * returned by
     * the [SearchSubscriptions]($e/Subscriptions/SearchSubscriptions) endpoint.
     */
    public function getFilter() : ?SearchSubscriptionsFilter
    {
        return $this->filter;
    }
    /**
     * Sets Filter.
     * Represents a set of query expressions (filters) to narrow the scope of targeted subscriptions
     * returned by
     * the [SearchSubscriptions]($e/Subscriptions/SearchSubscriptions) endpoint.
     *
     * @maps filter
     */
    public function setFilter(?SearchSubscriptionsFilter $filter) : void
    {
        $this->filter = $filter;
    }
    /**
     * Encode this object to JSON
     *
     * @param bool $asArrayWhenEmpty Whether to serialize this model as an array whenever no fields
     *        are set. (default: false)
     *
     * @return array|stdClass
     */
    #[\ReturnTypeWillChange]
    public function jsonSerialize(bool $asArrayWhenEmpty = \false)
    {
        $json = [];
        if (isset($this->filter)) {
            $json['filter'] = $this->filter;
        }
        $json = \array_filter($json, function ($val) {
            return $val !== null;
        });
        return !$asArrayWhenEmpty && empty($json) ? new stdClass() : $json;
    }
}