import type { RFunctionArgument } from '../../../../../../r-bridge/lang-4.x/ast/model/nodes/r-function-call';
import type { RNode } from '../../../../../../r-bridge/lang-4.x/ast/model/model';
/**
 * Retrieve the value from an argument, if it is not empty.
 */
export declare function unpackArgument<OtherInfo>(arg: RFunctionArgument<OtherInfo>, noNameOnly?: boolean): RNode<OtherInfo> | undefined;