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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 security_group_get(auth=None, **kwargs):
    '''
    Get a single security group. This will create a default security group
    if one does not exist yet for a particular project id.

    filters
        A Python dictionary of filter conditions to push down

    CLI Example:

    .. code-block:: bash

        salt '*' neutronng.security_group_get \
          name=1dcac318a83b4610b7a7f7ba01465548

        salt '*' neutronng.security_group_get \
          name=default\
          filters='{"tenant_id":"2e778bb64ca64a199eb526b5958d8710"}'
    '''
    cloud = get_operator_cloud(auth)
    kwargs = _clean_kwargs(**kwargs)
    return cloud.get_security_group(**kwargs)