Create a WEather object, taking as an input an apikey, a city name or lan and let coordinates.

    Package use example:
    # Create a Weather object using the city name:
    # The apikey below is not guaranteed to work.
    # Get your own apikey from openweathermap.org.
    # And wait a couple of hours for the apikey to get activated
    # The apikey could be activated even within minutes

    >>> weather = Weather(apikey='c4bcb6957g9e0b1ae584263c62fb5d3b', city='Vlore')

    # Using latitude and longitude coordinates
    >>> weather = Weather(apikey='c4bcb6957g9e0b1ae584263c62fb5d3b', lat=40, lon= -4)

    # Get complete weather data for the next 12 hours
    >>> weather.next_12h()

    # Simplified data for the next 12h
    >>> weather.next_12h_simplified()