import { CCliArgGroup, CCliArgGroupOptions, CCliParseArgs } from '../c-cli-arg-group';
import { CCliConditionalValue } from '../c-cli-conditional-value';
/** Options for {@link CliStringArgGroup} */
export declare type CCliStringArgGroupOptions<Optional extends boolean> = CCliArgGroupOptions<Optional>;
export declare type CCliStringArgGroupValue<Optional extends boolean> = CCliConditionalValue<string, Optional>;
/** `string`-valued argument group */
export declare class CCliStringArgGroup<Optional extends boolean> extends CCliArgGroup<CCliStringArgGroupValue<Optional>, Optional> {
    parse(args: CCliParseArgs<Optional>): CCliStringArgGroupValue<Optional>;
    /** {@link CCliStringArgGroup} factory function */
    static create<Optional extends boolean>(options?: CCliStringArgGroupOptions<Optional>): CCliStringArgGroup<Optional>;
    _optional: Optional;
}
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