import * as ts from "typescript";
import { Expression, J, Statement } from "../java";
export declare function isStatement(statement: J): statement is Statement;
export declare function isExpression(expression: J): expression is Expression;
export declare function getNextSibling(node: ts.Node): ts.Node | undefined;
export declare function getPreviousSibling(node: ts.Node): ts.Node | undefined;
export type TextSpan = [number, number];
export declare function compareTextSpans(span1: TextSpan, span2: TextSpan): 0 | 1 | -1;
export declare function binarySearch<T>(arr: T[], target: T, compare: (a: T, b: T) => number): number;
export declare function hasFlowAnnotation(sourceFile: ts.SourceFile): boolean;
export declare function checkSyntaxErrors(program: ts.Program, sourceFile: ts.SourceFile): [errorMsg: string, errorCode: number][];
export declare function isValidSurrogateRange(unicodeString: string): boolean;
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