import type { RuntimeConfigDocument } from '@zhin.js/plugin-runtime';
import type { PluginId } from '@zhin.js/plugin-runtime';
import type { ProjectGraph } from './project-graph.js';
/** Host configuration keys consumed by Runtime composition and Host installers. */
export declare const HOST_CONFIG_KEYS: readonly string[];
export type JsonSchema = Readonly<Record<string, unknown>>;
export interface ComposedConfig {
    readonly effectiveSchema: JsonSchema;
    readonly document: RuntimeConfigDocument;
    readonly views: ReadonlyMap<PluginId, unknown>;
}
export declare class ConfigSchemaCollisionError extends Error {
    readonly plugin: PluginId;
    readonly instanceKey: string;
    constructor(plugin: PluginId, instanceKey: string);
}
export declare class ConfigValidationError extends Error {
    readonly issues: readonly string[];
    /** Source config file name, when known (e.g. `zhin.config.yml`). */
    readonly source?: string | undefined;
    constructor(issues: readonly string[], 
    /** Source config file name, when known (e.g. `zhin.config.yml`). */
    source?: string | undefined);
}
export declare class ConfigComposer {
    private readonly inactivePluginInstanceKeys;
    constructor(inactivePluginInstanceKeys?: readonly string[]);
    compose(graph: ProjectGraph, input?: RuntimeConfigDocument, 
    /** Source config file name, annotated on ConfigValidationError. */
    source?: string): Promise<ComposedConfig>;
}