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/** Any object can be assigned to the property `state` of the `Context` object. */type State = Record<string | number | symbol, unknown>;// deno-lint-ignore no-explicit-anytype DefaultState = Record<string, any>;
/** * An instance of the extendable `Context` is passed as only argument to your * `Middleware`s. You can optionally extend the default `Context` object or pass * a `State` type. * ```ts * export class Ctx extends Context<{ start: number }> { *   pathname = this.url.pathname; * } * ``` */export class Context<S extends State = DefaultState> {  connInfo: Deno.ServeHandlerInfo;  error: Error | null = null;  result: URLPatternResult = {} as URLPatternResult;  request: Request;  response: Response = new Response("Not Found", { status: 404 });  state: S;  url: URL;  startTime = NaN;
  constructor(request: Request, connInfo: Deno.ServeHandlerInfo, state?: S) {    this.connInfo = connInfo;    this.request = request;    this.state = state || {} as S;    this.url = new URL(request.url);  }}