input: Write a python function to create a Flask API endpoint to get a list of employees.
  assert get_employees() == [{"id": 1, "name": "John Doe", "position": "Developer"}, {"id": 2, "name": "Jane Smith", "position": "Manager"}]
  assert get_employees() == []
output: from flask import Flask, jsonify
  
  app = Flask(__name__)
  
  def get_employees():
      # This function should return the list of employees.
      employees = [{"id": 1, "name": "John Doe", "position": "Developer"}, {"id": 2, "name": "Jane Smith", "position": "Manager"}]
      return employees
  
  @app.route('/employees', methods=['GET'])
  def employees_endpoint():
      employees = get_employees()
      return jsonify(employees)
  
  if __name__ == '__main__':
      app.run(debug=True)