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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_hvcs() -> Base: """Get HVCS helper class :raises ImproperConfigurationError: if the hvcs option provided is not valid """

    hvcs = config.get('semantic_release', 'hvcs')
    debug('get_hvcs: hvcs=', hvcs)
    try:
        return globals()[hvcs.capitalize()]
    except KeyError:
        raise ImproperConfigurationError('"{0}" is not a valid option for hvcs.')