TResolveHook
Bun

type

module.default.ResolveHook

type ResolveHook = (specifier: string, context: ResolveHookContext, nextResolve: (specifier: string, context?: Partial<ResolveHookContext>) => ResolveFnOutput | Promise<ResolveFnOutput>) => ResolveFnOutput | Promise<ResolveFnOutput>

The resolve hook chain is responsible for telling Node.js where to find and how to cache a given import statement or expression, or require call. It can optionally return a format (such as 'module') as a hint to the load hook. If a format is specified, the load hook is ultimately responsible for providing the final format value (and it is free to ignore the hint provided by resolve); if resolve provides a format, a custom load hook is required even if only to pass the value to the Node.js default load hook.