export default class ResourceManager<ResourceTypes extends Record<string, any> = Record<string, any>> {
    private resources;
    private resourceFactories;
    private initializedResourceKeys;
    /**
     * Add a resource to the manager
     * @param label The resource key
     * @param resource The resource value or a factory function that returns the resource
     * @returns The resource manager instance for chaining
     */
    add<K extends keyof ResourceTypes>(label: K, resource: ResourceTypes[K] | ((context?: any) => ResourceTypes[K] | Promise<ResourceTypes[K]>)): this;
    /**
     * Get a resource from the manager
     * @param label The resource key
     * @param context Optional context to pass to factory functions (usually the ECSpresso instance)
     * @returns The resource value
     * @throws Error if resource not found
     */
    get<K extends keyof ResourceTypes>(label: K, context?: any): ResourceTypes[K];
    /**
     * Check if a resource exists
     * @param label The resource key
     * @returns True if the resource exists
     */
    has<K extends keyof ResourceTypes>(label: K): boolean;
    /**
     * Remove a resource
     * @param label The resource key
     * @returns True if the resource was removed
     */
    remove<K extends keyof ResourceTypes>(label: K): boolean;
    /**
     * Get all resource keys
     * @returns Array of resource keys
     */
    getKeys(): Array<string>;
    /**
     * Check if a resource needs to be initialized
     * @param label The resource key
     * @returns True if the resource needs initialization
     */
    needsInitialization<K extends keyof ResourceTypes>(label: K): boolean;
    /**
     * Get all resource keys that need to be initialized
     * @returns Array of resource keys that need initialization
     */
    getPendingInitializationKeys(): Array<string>;
    /**
     * Initialize a specific resource if it's a factory function
     * @param label The resource key
     * @param context Optional context to pass to factory functions
     * @returns Promise that resolves when the resource is initialized
     */
    initializeResource<K extends keyof ResourceTypes>(label: K, context?: any): Promise<void>;
    /**
     * Initialize specific resources or all resources that haven't been initialized yet
     * @param keys Optional array of resource keys to initialize or optional context to pass to factory functions
     * @returns Promise that resolves when the specified resources are initialized
     */
    initializeResources<K extends keyof ResourceTypes>(context?: any, ...keys: K[]): Promise<void>;
}