import * as ts from 'typescript';
import { AnonymousType, MappedType } from '../ts-internal';
/**
 * Check whether a given type is an index type (i.e., `keyof Foo`)
 *
 * @param type type to check
 * @public
 */
export declare function isIndexType(type: ts.Type): type is ts.IndexType;
/**
 * Check whether a given type is an indexed access type (i.e., `Foo['bar']`)
 *
 * @param type type to check
 * @public
 */
export declare function isIndexedAccessType(type: ts.Type): type is ts.IndexedAccessType;
/**
 * Check whether a given type is a primitive type
 *
 * @param type type to check
 * @public
 */
export declare function isPrimitiveType(type: ts.Type): boolean;
/**
 * Check whether a given type is a conditional type
 *
 * @param type type to check
 * @public
 */
export declare function isConditionalType(type: ts.Type): type is ts.ConditionalType;
/**
 * Check whether a Type is an ObjectType
 *
 * @param type Type
 * @public
 */
export declare function isObjectType(type: ts.Type): type is ts.ObjectType;
/**
 * Check whether a given type describes an interface (or class)
 *
 *
 * @param type type to check
 * @public
 */
export declare function isInterfaceType(type: ts.Type): type is ts.InterfaceType;
/**
 * Check whether a given type is a ts.ReferenceType
 *
 * @param type type to check
 * @public
 */
export declare function isObjectReferenceType(type: ts.Type): type is ts.TypeReference;
/**
 * Check whether a given type describes a tuple
 *
 * @param type type to check
 * @public
 */
export declare function isTupleType(type: ts.Type): type is ts.TupleType;
/**
 * Check whether a given type is anonymous
 *
 * @param type type to check
 * @public
 */
export declare function isAnonymousType(type: ts.Type): type is AnonymousType;
/**
 * Check whether a given type is a mapped type
 *
 * @param type type to check
 * @private
 */
export declare function isMappedType(type: ts.Type): type is MappedType;
/**
 * Check whether a given type has degraded to an `any` due to an error of some sort
 *
 * @param type type to check
 * @public
 */
export declare function isErroredType(type: ts.Type): boolean;
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