import ts from 'typescript';
export declare type KnownDefinitionMap = {
    [key: string]: {
        pos: number;
        end: number;
    };
};
/**
 * Recursively finds all identifier nodes within/including a given node
 * Note: this requires parent nodes to be set because it relies on generic parent - child relationships.
 * @param root
 */
export declare function collectIdentifierNodes(root: ts.Node): ts.Identifier[];
/**
 * Returns a set of all the identifier names within the given source file
 * @param sourceFile
 */
export declare function collectIdentifiers(sourceFile: ts.SourceFile): Set<string>;
/**
 * Finds known imports
 * @param sourceFile
 */
export declare function findKnownImports(sourceFile: ts.SourceFile): KnownDefinitionMap;
export declare function findKnownVariables(sourceFile: ts.SourceFile): KnownDefinitionMap;