How to use the @glimmer/opcode-compiler.PartialDefinition function in @glimmer/opcode-compiler

export function registerPartial(
  registry: JitRegistry,
  name: string,
  source: string
): PartialDefinition {
  let definition = new PartialDefinition(name, preprocess(source));
  registry.register('partial', name, definition);
  return definition;
}

registerPartial(name: string, source: string): PartialDefinition {
    let definition = new PartialDefinition(name, this.preprocess(source));
    this.resolver.register('partial', name, definition);
    return definition;
  }

export function registerPartial(
  registry: TestJitRegistry,
  name: string,
  source: string
): PartialDefinition {
  let definition = new PartialDefinition(name, preprocess(source));
  registry.register('partial', name, definition);
  return definition;
}

private _lookupPartial(name: string, meta: OwnedTemplateMeta): PartialDefinition {
    let templateFactory = lookupPartial(name, meta.owner);
    let template = templateFactory(meta.owner);

    return new PartialDefinition(name, template);
  }