import { FlowrAnalyzerPlugin, PluginType } from '../flowr-analyzer-plugin';
import type { GasLevel } from '../../../gas';
/**
 * Base class for gas plugins, queried on-demand by {@link FlowrAnalyzerGasContext.checkGas}.
 *
 * Override {@link process} to provide a custom resource-pressure assessment for a feature key.
 * Return `undefined` to defer to the built-in memory and time checks.
 * Multiple Gas plugins are combined by taking the maximum ({@link GasLevel}) returned by any plugin
 * or by the built-in checks.
 *
 * A gas plugin is the right place to add domain-specific checks (e.g., CPU, I/O, quota limits)
 * or to override default behavior for testing by returning a hardcoded level.
 * @see {@link PluginType.Gas}
 * @see {@link FlowrAnalyzerGasContext}
 */
export declare abstract class FlowrAnalyzerGasPlugin extends FlowrAnalyzerPlugin<string, GasLevel | undefined> {
    readonly type = PluginType.Gas;
    static defaultPlugin(): FlowrAnalyzerGasPlugin;
}