const addCityValidator = () => {
        return object({
          set: object({
            ...locationPure,
            isCapital: optional(boolean()),
            country: objectIdValidation,
            }),
            get: coreApp.schemas.selectStruct("city", 1),
        });
      };
      const addCity: ActFn = async (body) => {
        const { country, isCapital, name, population, abb } = body.details.set;
      
const myContext = coreApp.contextFns.getContextModel();
        return await cities.insertOne({
          doc: { name, population, abb },
          projection: body.details.get,
          relations: {
            country: {
              _ids: new ObjectId(country),
              relatedRelations: {
                citiesAsc: true,
                citiesDesc: true,
                citiesByPopAsc: true,
                citiesByPopDesc: true,
                capitalCity: isCapital,
              },
            },
          },
        });
      };
      
const addSomthingToContext = () => {
            const prevContext = coreApp.contextFns.getContextModel();
            coreApp.contextFns.addContexts({ ...prevContext, userName: "Mina" });
          }
      
    coreApp.acts.setAct({
      schema: "city",
      actName: "addCity",
      validator: addCityValidator(),
      fn: addCity,
    })
preAct: [addSomthingToContext]
    

    
      {
        Headers: Headers {
        accept: "*/*",
        "accept-encoding": "gzip, deflate, br",
        "accept-language": "en-US,en;q=0.5",
        authorization: "",
        connection: "keep-alive",
        "content-length": "349",
        "content-type": "application/json",
        cookie: "next-auth.session-token=eyJhbGciOiJkaXIiLCJlbmMiOiJBMjU2R0NNIn0..MmT9zoRN0E-gIPB-.HOQdbQUu6-36jQKBAn...",
        host: "localhost:1366",
        origin: "http://localhost:1366",
        referer: "http://localhost:1366/playground",
        "sec-fetch-dest": "empty",
        "sec-fetch-mode": "cors",
        "sec-fetch-site": "same-origin",
        "user-agent": "Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:121.0) Gecko/20100101 Firefox/121.0"
      },
        body: {
          service: "main",
          model: "city",
          act: "addCity",
          details: {
            get: {
              _id: 1,
              name: 1,
              population: 1,
              abb: 1,
              country: [Object],
              users: [Object],
              lovedByUser: [Object]
            },
            set: {
              name: "malayer",
              population: 500000,
              abb: "mlr",
              isCapital: false,
              country: "659fda267b94d4cdfed11dfb"
            }
          }
        },
        name: "malayer",
        userName: "erfan"
      }