class ValidationPipe implements PipeTransform {
  protected isTransformEnabled: boolean
  protected isDetailedOutputDisabled?: boolean
  protected validatorOptions: ValidatorOptions
  protected transformOptions: ClassTransformOptions | undefined
  protected errorHttpStatusCode: ErrorHttpStatusCode
  protected expectedType: Type<any> | undefined
  protected exceptionFactory: (errors: ValidationError[]) => any
  protected validateCustomDecorators: boolean
  protected loadValidator(validatorPackage?: ValidatorPackage): ValidatorPackage
  protected loadTransformer(transformerPackage?: TransformerPackage): TransformerPackage
  transform(value: any, metadata: ArgumentMetadata)
  createExceptionFactory()
  protected toValidate(metadata: ArgumentMetadata): boolean
  protected transformPrimitive(value: any, metadata: ArgumentMetadata)
  protected toEmptyIfNil<T = any, R = T>(value: T, metatype: object | Type<unknown>): R | object | string
  protected stripProtoKeys(value: any)
  protected isPrimitive(value: unknown): boolean
  protected validate(object: object, validatorOptions?: ValidatorOptions): Promise<ValidationError[]> | ValidationError[]
  protected flattenValidationErrors(validationErrors: ValidationError[]): string[]
  protected mapChildrenToValidationErrors(error: ValidationError, parentPath?: string): ValidationError[]
  protected prependConstraintsWithParentProp(parentPath: string, error: ValidationError): ValidationError
}

protected loadValidator(validatorPackage?: ValidatorPackage): ValidatorPackage

protected loadTransformer(transformerPackage?: TransformerPackage): TransformerPackage

transform(value: any, metadata: ArgumentMetadata)

createExceptionFactory()

protected toValidate(metadata: ArgumentMetadata): boolean

protected transformPrimitive(value: any, metadata: ArgumentMetadata)

protected toEmptyIfNil<T = any, R = T>(value: T, metatype: object | Type<unknown>): R | object | string

protected stripProtoKeys(value: any)

protected isPrimitive(value: unknown): boolean

protected validate(object: object, validatorOptions?: ValidatorOptions): Promise<ValidationError[]> | ValidationError[]

protected flattenValidationErrors(validationErrors: ValidationError[]): string[]

protected mapChildrenToValidationErrors(error: ValidationError, parentPath?: string): ValidationError[]

protected prependConstraintsWithParentProp(parentPath: string, error: ValidationError): ValidationError