rule_type path parameter:rule_type is rules, the promotion's rules are retrivied. - If rule_type is target-rules, the target rules of the promotion's application method are retrieved.rule_type is buy-rules, the buy rules of the promotion's application method are retrieved.curl '{backend_url}/admin/promotions/{id}/{rule_type}' \
-H 'Authorization: Bearer {access_token}'{
"rules": [
{
"id": "string",
"description": "string",
"attribute": "customer_group_id",
"operator": "gt",
"values": [
"cusgroup_123"
]
}
]
}