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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_distribution(dist):
 """Return a current distribution object for a Requirement or string"""

    if isinstance(dist, six.string_types):
        dist = Requirement.parse(dist)
    if isinstance(dist, Requirement):
        dist = get_provider(dist)
    if not isinstance(dist, Distribution):
        raise TypeError("Expected string, Requirement, or Distribution", dist)
    return dist