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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_slot_value(handler_input, slot_name):
 # type: (HandlerInput, str) -> AnyStr """Return the slot value from intent request. The method retrieves the slot value from the input intent request for the given ``slot_name``. More information on the slots can be found here : https://developer.amazon.com/docs/custom-skills/request-types-reference.html#slot-object If there is no such slot, then a :py:class:`ValueError` is raised. If the input request is not an :py:class:`ask_sdk_model.intent_request.IntentRequest`, a :py:class:`TypeError` is raised. :param handler_input: The handler input instance that is generally passed in the sdk's request and exception components :type handler_input: ask_sdk_core.handler_input.HandlerInput :param slot_name: Name of the slot for which the value has to be retrieved :type slot_name: str :return: Slot value for the provided slot if it exists :rtype: str :raises: TypeError if the input is not an IntentRequest. ValueError is slot doesn't exist """

    slot = get_slot(handler_input=handler_input, slot_name=slot_name)

    if slot is not None:
        return slot.value

    raise ValueError(
        "Provided slot {} doesn't exist in the input request".format(
            slot_name))