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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_subscription_attributes(SubscriptionArn, region=None, key=None, keyid=None, profile=None):
    '''
    Returns all of the properties of a subscription.

    CLI example::

        salt myminion boto3_sns.get_subscription_attributes somesubscription region=us-west-1
    '''
    conn = _get_conn(region=region, key=key, keyid=keyid, profile=profile)
    try:
        ret = conn.get_subscription_attributes(SubscriptionArn=SubscriptionArn)
        return ret['Attributes']
    except botocore.exceptions.ClientError as e:
        log.error('Failed to list attributes for SNS subscription %s: %s',
                  SubscriptionArn, e)
        return None
    except KeyError:
        log.error('Failed to list attributes for SNS subscription %s',
                  SubscriptionArn)
        return None