How to use the core-js/es6.Promise function in core-js

getAllPatientsAsync(): Promise> {
    let patientsPromise = new Promise((resolve, reject) => {
      resolve(patientsMockData);
    });

    return patientsPromise;
  };

getAllSpecialtiesAsync(): Promise> {
    let specialtiesPromise = new Promise((resolve, reject) => {
      resolve(specialtiesMockData);
    });

    return specialtiesPromise;
  }
}

getPatientByIdAsync(id: number): Promise {
    let patientPromise = new Promise((resolve, reject) => {
      let patient = patientsMockData.find((patient: Patient) => {
        return patient.id === id;
      });

      resolve(patient);
    });

    return patientPromise;
  };

getAllPatientsAsync(): Promise> {
    let patientsPromise = new Promise((resolve, reject) => {
      resolve(patientsMockData);
    });

    return patientsPromise;
  };

getPatientByIdAsync(id: number): Promise {
    let patientPromise = new Promise((resolve, reject) => {
      let patient = patientsMockData.find((patient: Patient) => {
        return patient.id === id;
      });

      resolve(patient);
    });

    return patientPromise;
  };

getAllSpecialtiesAsync(): Promise> {
    let specialtiesPromise = new Promise((resolve, reject) => {
      resolve(specialtiesMockData);
    });

    return specialtiesPromise;
  }
}

getAllDoctorsAsync(): Promise> {
    let doctorsPromise = new Promise((resolve, reject) => {
      resolve(doctorsMockData);
    });

    return doctorsPromise;
  };

getAllPatientsAsync(): Promise> {
    let patientsPromise = new Promise((resolve, reject) => {
      resolve(patientsMockData);
    });

    return patientsPromise;
  };

getAllSpecialtiesAsync(): Promise> {
    let specialtiesPromise = new Promise((resolve, reject) => {
      resolve(specialtiesMockData);
    });

    return specialtiesPromise;
  };

getAllPatientsAsync(): Promise> {
    let patientsPromise = new Promise((resolve, reject) => {
      resolve(patientsMockData);
    });

    return patientsPromise;
  };