import type { Leaf, Location, NoInfo } from '../model';
import { RNode } from '../model';
import type { RStringValue } from '../../../convert-values';
import { RType } from '../type';
import { SemVer } from 'semver';
/**
 * Represents a string like `"hello"`, including raw strings like `r"(hello)"`.
 * @see {@link isRString} - to check whether a node is an R string
 */
export interface RString<Info = NoInfo> extends Leaf<Info>, Location {
    readonly type: RType.String;
    content: RStringValue;
}
/**
 * Helper for working with {@link RString} AST nodes.
 */
export declare const RString: {
    name: string;
    /**
     * Type guard for RString nodes.
     * @see {@link RString}
     */
    is<Info = object>(this: void, node: RNode<Info> | undefined): node is RString<Info>;
    /**
     * Returns the minimum R version that supports raw strings (in a stable format).
     * @see {@link RString}
     */
    rawStringAvailableFromRVersion(): SemVer;
    getLocation: (this: void, node: RNode) => import("../../../../../util/range").SourceLocation | undefined;
    getId: (this: void, node: RNode<import("../processing/decorate").ParentInformation>) => import("../processing/node-id").NodeId;
    getType: (this: void, node: RNode) => RType;
    visitAst: <OtherInfo = object>(this: void, nodes: import("../../../../../abstract-interpretation/normalized-ast-fold").SingleOrArrayOrNothing<RNode<OtherInfo>>, onVisit?: import("../processing/visitor").OnEnter<OtherInfo>, onExit?: import("../processing/visitor").OnExit<OtherInfo>) => void;
    collectAllIds: <OtherInfo>(this: void, nodes: import("../../../../../abstract-interpretation/normalized-ast-fold").SingleOrArrayOrNothing<RNode<OtherInfo & import("../processing/decorate").ParentInformation>>) => Set<import("../processing/node-id").NodeId>;
    directChildren: <OtherInfo>(this: void, node: RNode<OtherInfo>) => readonly (RNode<OtherInfo> | typeof import("./r-function-call").EmptyArgument)[];
    directParent: <OtherInfo>(this: void, node: RNode<OtherInfo & import("../processing/decorate").ParentInformation>, idMap: Map<import("../processing/node-id").NodeId, RNode<OtherInfo & import("../processing/decorate").ParentInformation>>) => RNode<OtherInfo & import("../processing/decorate").ParentInformation> | undefined;
    iterateParents: <OtherInfo>(this: void, node: RNode<OtherInfo & import("../processing/decorate").ParentInformation> | undefined, idMap: Map<import("../processing/node-id").NodeId, RNode<OtherInfo & import("../processing/decorate").ParentInformation>>) => Generator<RNode<OtherInfo & import("../processing/decorate").ParentInformation>>;
    depth: (this: void, node: RNode<import("../processing/decorate").ParentInformation>, idMap: Map<import("../processing/node-id").NodeId, RNode<import("../processing/decorate").ParentInformation>>) => number;
    collectAllIdsWithStop: <OtherInfo>(this: void, nodes: import("../../../../../abstract-interpretation/normalized-ast-fold").SingleOrArrayOrNothing<RNode<OtherInfo & import("../processing/decorate").ParentInformation>>, stop: (node: RNode<OtherInfo & import("../processing/decorate").ParentInformation>) => boolean) => Set<import("../processing/node-id").NodeId>;
    lexeme: <R extends RNode<import("../processing/decorate").ParentInformation>>(this: void, node: R | undefined) => R extends {
        lexeme: string;
    } ? string : string | undefined;
    documentation: typeof import("../../../../roxygen2/documentation-provider").getDocumentationOf;
};