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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 current_earthquake_model_name():
 """Human friendly name for the currently active earthquake fatality model. :returns: Name of the current EQ fatality model as defined in users settings. """

    default_earthquake_function = setting(
        'earthquake_function', EARTHQUAKE_FUNCTIONS[0]['key'], str)
    current_function = None
    for model in EARTHQUAKE_FUNCTIONS:
        if model['key'] == default_earthquake_function:
            current_function = model['name']
    return current_function