pnpm add @pnpm/resolving.resolver-base

import {
  ResolveOptions,
  ResolveResult,
  WantedDependency,
} from '@pnpm/resolving.resolver-base'

export async function testResolver (
  wantedDependency: WantedDependency,
  opts: ResolveOptions,
): Promise<ResolveResult> {
  // ...
  return {
    id,
    resolution,
    package,
    latest,
    normalizedBareSpecifier,
  }
}