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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 get_key_by_value(dictionary, search_value):
 """ searchs a value in a dicionary and returns the key of the first occurrence :param dictionary: dictionary to search in :param search_value: value to search for """

    for key, value in dictionary.iteritems():
        if value == search_value:
            return ugettext(key)