src/Extensions/ExtensionManager.php
public function getEnabledBootstrappers()
    {
        $bootstrappers = new Collection;

        foreach ($this->getEnabledExtensions() as $extension) {
            if ($this->filesystem->exists($file = $extension->getPath().'/bootstrap.php')) {
                $bootstrappers->push($file);
            }
        }

        return $bootstrappers;
    }
public function getEnabledBootstrappers()
    {
        $bootstrappers = new Collection;

        foreach ($this->getEnabledExtensions() as $extension) {
            if ($this->filesystem->exists($file = $extension->getPath().'/bootstrap.php')) {
                $bootstrappers->push($file);
            }
        }

        return $bootstrappers;
    }
Loads all bootstrap.php files of the enabled extensions.

@return Collection