import { InjectionToken, Provider } from '#di';
import { ExtensionType, ExtensionProvider, Extension } from '#types/extension-types.js';
export declare class ExtensionObj {
    exportedOnly?: boolean;
    exports: any[];
    providers: ExtensionProvider[];
}
export interface ExtensionOptionsBase {
    extension: ExtensionType;
    /**
     * Extension group token.
     */
    token: InjectionToken<Extension[]>;
    /**
     * The token of the group before which this extension will be called. Use this option
     * only if the extension group you place here does not expect your extension group to work.
     */
    nextToken?: InjectionToken<Extension[]>;
    overrideExtension?: never;
}
export interface ExtensionOptions1 extends ExtensionOptionsBase {
    /**
     * Indicates whether this extension needs to be exported.
     */
    exported?: boolean;
    exportedOnly?: never;
}
export interface ExtensionOptions2 extends ExtensionOptionsBase {
    exported?: never;
    /**
     * Indicates whether this extension needs to be exported without working in host module.
     */
    exportedOnly?: boolean;
}
export interface ExtensionOptions3 {
    extension: ExtensionType;
    overrideExtension: ExtensionType;
}
export type ExtensionOptions = ExtensionOptions1 | ExtensionOptions2 | ExtensionOptions3;
export declare function isOptionWithOverrideExtension(extensionOptions: ExtensionOptions): extensionOptions is ExtensionOptions3;
export declare function getExtensionProvider(extensionOptions: ExtensionOptions): ExtensionObj;
export declare function getExtensionProviderList(extensionOptions: ExtensionOptions[]): Provider[];
//# sourceMappingURL=get-extension-provider.d.ts.map