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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 force_to_string(unknown):
 """ converts and unknown type to string for display purposes. """

    result = ''
    if type(unknown) is str:
        result = unknown
    if type(unknown) is int:
        result = str(unknown)
    if type(unknown) is float:
        result = str(unknown)
    if type(unknown) is dict:
        result = Dict2String(unknown)
    if type(unknown) is list:
        result = List2String(unknown)
    return result