import * as ts from 'typescript';
export declare function isEmptyObjectType(type: ts.Type): type is ts.ObjectType;
export declare function removeOptionalityFromType(checker: ts.TypeChecker, type: ts.Type): ts.Type;
export declare function isTypeAssignableToNumber(checker: ts.TypeChecker, type: ts.Type): boolean;
export declare function isTypeAssignableToString(checker: ts.TypeChecker, type: ts.Type): boolean;
export declare function getCallSignaturesOfType(type: ts.Type): ReadonlyArray<ts.Signature>;
export declare function unionTypeParts(type: ts.Type): ts.Type[];
export declare function isThenableType(checker: ts.TypeChecker, node: ts.Expression, type?: ts.Type): boolean;
export declare function isFalsyType(type: ts.Type): boolean;