[ddu-filter]
prefix = "ddufilter"
body = """
import {
  BaseFilter,
  type FilterArguments,
} from "jsr:@shougo/ddu-vim@~7.0.0/filter";
import type { DduFilterItems } from "jsr:@shougo/ddu-vim@~7.0.0/types";

export type ActionData = Record<PropertyKey, never>;

type Params = Record<PropertyKey, never>;

export class Filter extends BaseFilter<Params> {
  override filter(
    {}: FilterArguments<Params>,
  ): DduFilterItems | Promise<DduFilterItems> {
    throw new Error("not implemented");
  }
  override params(): Params {
    return {};
  }
}"""