golden hour

/var/www/html/wp-content/plugins/the-events-calendar/common/src/Tribe

File/Folder	Size	Actions
Abstract_Deactivation.php	1.65 KB
Abstract_Plugin_Register.php	1.25 KB
Admin	-
Ajax	-
App_Shop.php	9.87 KB
Asset	-
Assets.php	24.69 KB
Assets_Pipeline.php	1.7 KB
Autoloader.php	8.31 KB
Cache.php	18.13 KB
Cache_Listener.php	5.92 KB
Changelog_Reader.php	1.5 KB
Container.php	11.36 KB
Context	-
Context.php	48.65 KB
Cost_Utils.php	16.44 KB
Credits.php	2.9 KB
Customizer	-
Customizer.php	25.29 KB
DB_Lock.php	10.04 KB
Data.php	5.21 KB
Date_Utils.php	48.59 KB
Db.php	876 B
Debug.php	1.54 KB
Debug_Bar	-
Dependency.php	16.47 KB
Deprecation.php	4.84 KB
Dialog	-
Documentation	-
Duplicate	-
Editor	-
Editor.php	6.58 KB
Error.php	4.51 KB
Exception.php	2.08 KB
Extension.php	13 KB
Extension_Loader.php	3.96 KB
Feature_Detection.php	7.51 KB
Field.php	22.38 KB
Field_Conditional.php	2.37 KB
Freemius.php	1.34 KB
Image	-
JSON_LD	-
Languages	-
Log	-
Log.php	11.33 KB
Main.php	23.13 KB
Meta	-
Models	-
Notices.php	1.49 KB
PUE	-
Plugin_Meta_Links.php	3.45 KB
Plugins.php	5.32 KB
Plugins_API.php	12.2 KB
Post_History.php	2.96 KB
Post_Transient.php	5.76 KB
Process	-
Promise.php	9.04 KB
Promoter	-
REST	-
Repository	-
Repository.php	100.06 KB
Rewrite.php	34.63 KB
Service_Providers	-
Settings.php	23.81 KB
Settings_Manager.php	9.78 KB
Settings_Tab.php	6.93 KB
Shortcode	-
Simple_Table.php	4.01 KB
Support	-
Support.php	14.43 KB
Tabbed_View	-
Tabbed_View.php	8.1 KB
Template.php	43.65 KB
Template_Factory.php	5.45 KB
Template_Part_Cache.php	2.74 KB
Templates.php	1.79 KB
Terms.php	1.51 KB
Timezones.php	18.21 KB
Tooltip	-
Tracker.php	12.51 KB
Traits	-
Updater.php	3.78 KB
Utils	-
Validate.php	16.54 KB
Validator	-
View_Helpers.php	9.64 KB
Widget	-

Edit: Extension_Loader.php

<?php
defined( 'WPINC' ) || die; // Do not load directly.

/**
 * Class Tribe__Extension_Loader
 */
class Tribe__Extension_Loader {

/**
	 * Plugin header data
	 *
	 * @var array {
	 *      Plugin header data
	 *
	 *      @param array $plugin_basename Plugin header key/value pairs.
	 * }
	 */
	private $plugin_data = [];

/**
	 * Class instance.
	 *
	 * @var Tribe__Extension_Loader The singleton instance.
	 */
	private static $instance;

/**
	 * Returns the singleton instance of this class.
	 *
	 * @return Tribe__Extension_Loader instance.
	 */
	public static function instance() {
		return null === self::$instance ? new self() : self::$instance;
	}

/**
	 * Intializes each extension.
	 */
	private function __construct() {
		$prefixes = self::get_extension_file_prefixes();
		$extension_filepaths = Tribe__Utils__Plugins::get_plugins_with_prefix( $prefixes );

foreach ( $extension_filepaths as $plugin_file ) {
			$this->instantiate_extension( $plugin_file );
		}
	}

/**
	 * Gets tribe extension plugin foldername prefixes
	 *
	 * @return array Prefixes
	 */
	public static function get_extension_file_prefixes() {
		$prefixes = [ 'tribe-ext-' ];

/**
		 * Filter which plugin folder prefixes are considered tribe extensions.
		 *
		 * @param array $prefixes Extension plugin folder name prefixes.
		 */
		return apply_filters( 'tribe_extension_prefixes', $prefixes );
	}

/**
	 * Instantiates an extension based on info in its plugin file header.
	 *
	 * @param string $plugin_file Full path to extension's plugin file header.
	 *
	 * @return bool Indicates if extension was instantiated successfully.
	 */
	public function instantiate_extension( $plugin_file ) {
		$p_data = $this->get_cached_plugin_data( $plugin_file );
		$p_folder = trailingslashit( dirname( $plugin_file ) );
		$success = false;

// Nothing to instantiate if class is not set.
		if ( empty( $p_data['ExtensionClass'] ) ) {
			return $success;
		}

// Default to plugin file when empty.
		$class_file = ! empty( $p_data['ExtensionFile'] ) ? $p_folder . $p_data['ExtensionFile'] : $plugin_file;

// Include file.
		if ( file_exists( $class_file ) ) {
			// Prevent loading class twice in edge cases where require_once wouldn't work.
			if ( ! class_exists( $p_data['ExtensionClass'] ) ) {
				require( $class_file );
			}
		} else {
			_doing_it_wrong(
				esc_html( $class_file ),
				'Extension file does not exist, please specify valid extension file.',
				'4.3'
			);
		}

// Class instantiation.
		if ( class_exists( $p_data['ExtensionClass'] ) ) {
			$extension_args = [
				'file' => $plugin_file,
				'plugin_data' => $p_data,
			];

// Instantiates extension instance.
			$extension = call_user_func(
				[ $p_data['ExtensionClass'], 'instance' ],
				$p_data['ExtensionClass'],
				$extension_args
			);

if ( null !== $extension ) {
				$success = true;
			}
		} else {
			_doing_it_wrong(
				esc_html( $p_data['ExtensionClass'] ),
				'Specified extension class does not exist. Please double check that this class is declared in the extension file.',
				'4.3'
			);
		}

return $success;
	}

/**
	 * Retrieves plugin data from cache if it exists.
	 *
	 * @param string $plugin_path Path to plugin header file.
	 *
	 * @return array|null Plugin data or null.
	 */
	public function get_cached_plugin_data( $plugin_path ) {
		$plugin_basename = plugin_basename( $plugin_path );

if ( ! array_key_exists( $plugin_basename, $this->plugin_data ) ) {
			$this->plugin_data[ $plugin_basename ] = Tribe__Utils__Plugins::get_plugin_data( $plugin_path );
		}

return $this->plugin_data[ $plugin_basename ];
	}

/**
	 * Prevent cloning the singleton with 'clone' operator
	 *
	 * @return void
	 */
	public function __clone() {
		_doing_it_wrong(
			__FUNCTION__,
			'Can not use this method on singletons.',
			'4.3'
		);
	}

/**
	 * Prevent unserializing the singleton instance
	 *
	 * @return void
	 */
	public function __wakeup() {
		_doing_it_wrong(
			__FUNCTION__,
			'Can not use this method on singletons.',
			'4.3'
		);
	}
}