input: Write a python function to get weather information using OpenWeatherMap API.
  assert get_weather("London") != ""
  assert get_weather("New York") != ""
  assert get_weather("Tokyo") != ""
output: def get_weather(city):
      import requests
  
      api_key = "your_openweathermap_api_key"
      base_url = "http://api.openweathermap.org/data/2.5/weather?"
      
      complete_url = f"{base_url}q={city}&appid={api_key}"
      
      response = requests.get(complete_url)
      data = response.json()
      
      if data["cod"] != "404":
          main = data["main"]
          weather = data["weather"]
          weather_description = weather[0]["description"]
          temperature = main["temp"]
          return f"Weather in {city}: {weather_description}, Temperature: {temperature}K"
      else:
          return "City Not Found"