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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def decide_k(airport_code):
 """A function to decide if a leading 'K' is throwing off an airport match and return the correct code."""


    if airport_code[:1].upper() == 'K':
        try: # if there's a match without the K that's likely what it is.
            return Airport.objects.get(location_identifier__iexact=airport_code[1:]).location_identifier
        except Airport.DoesNotExist:
            return airport_code
    else:
        return airport_code