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<?php

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

use stdClass;
/**
 * Represents a
 * [RetrieveMerchantCustomAttributeDefinition]($e/MerchantCustomAttributes/RetrieveMerchantCustomAttrib
 * uteDefinition) request.
 */
class RetrieveMerchantCustomAttributeDefinitionRequest implements \JsonSerializable
{
    /**
     * @var int|null
     */
    private $version;
    /**
     * Returns Version.
     * The current version of the custom attribute definition, which is used for strongly consistent
     * reads to guarantee that you receive the most up-to-date data. When included in the request,
     * Square returns the specified version or a higher version if one exists. If the specified version
     * is higher than the current version, Square returns a `BAD_REQUEST` error.
     */
    public function getVersion() : ?int
    {
        return $this->version;
    }
    /**
     * Sets Version.
     * The current version of the custom attribute definition, which is used for strongly consistent
     * reads to guarantee that you receive the most up-to-date data. When included in the request,
     * Square returns the specified version or a higher version if one exists. If the specified version
     * is higher than the current version, Square returns a `BAD_REQUEST` error.
     *
     * @maps version
     */
    public function setVersion(?int $version) : void
    {
        $this->version = $version;
    }
    /**
     * 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->version)) {
            $json['version'] = $this->version;
        }
        $json = \array_filter($json, function ($val) {
            return $val !== null;
        });
        return !$asArrayWhenEmpty && empty($json) ? new stdClass() : $json;
    }
}