const NEXT_STATIC_GEN_BAILOUT = 'NEXT_STATIC_GEN_BAILOUT' export class StaticGenBailoutError extends Error { public readonly code = NEXT_STATIC_GEN_BAILOUT } export function isStaticGenBailoutError( error: unknown ): error is StaticGenBailoutError { if (typeof error !== 'object' || error === null || !('code' in error)) { return false } return error.code === NEXT_STATIC_GEN_BAILOUT }