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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 add(env, securitygroup_id, remote_ip, remote_group, direction, ethertype, port_max, port_min, protocol):
 """Add a security group rule to a security group. \b Examples: # Add an SSH rule (TCP port 22) to a security group slcli sg rule-add 384727 \\ --direction ingress \\ --protocol tcp \\ --port-min 22 \\ --port-max 22 \b # Add a ping rule (ICMP type 8 code 0) to a security group slcli sg rule-add 384727 \\ --direction ingress \\ --protocol icmp \\ --port-min 8 \\ --port-max 0 """

    mgr = SoftLayer.NetworkManager(env.client)

    ret = mgr.add_securitygroup_rule(securitygroup_id, remote_ip, remote_group,
                                     direction, ethertype, port_max,
                                     port_min, protocol)

    if not ret:
        raise exceptions.CLIAbort("Failed to add security group rule")

    table = formatting.Table(REQUEST_RULES_COLUMNS)
    table.add_row([ret['requestId'], str(ret['rules'])])

    env.fout(table)