Align the Preview update-team-members request with what the API accepts

descriptions/0/api.intercom.io.yaml

@@ -24448,7 +24448,7 @@ paths:
       - name: Intercom-Version
         in: header
         schema:
-          "$ref": "#/components/schemas/intercom_version"
+          "$ref": "#/components/schemas/intercom_version_preview"
       - name: id
         in: path
         required: true
@@ -24470,6 +24470,7 @@ paths:
         they must be able to manage teams, and any team or teammate their access is
         restricted from remains out of reach here.
       requestBody:
+        required: true
         content:
           application/json:
             examples:
@@ -30194,7 +30195,6 @@ components:
     admin_priority_level_request:
       title: Admin Priority Level Request
       type: object
-      nullable: true
       description: The priority levels to set, naming only the teammates whose level
         is being set
       properties:
@@ -46280,7 +46280,9 @@ components:
         query string is rejected rather than applied. A team read from the API can be sent
         back whole, since the other fields of the representation are accepted as long as
         they are unchanged. Trying to change one of them returns a 400 rather than being
-        ignored, as does any field a team does not have.
+        ignored, as does any field a team does not have. `admin_ids` cannot be empty, so
+        the endpoint will not empty a team, and a team with no members cannot be sent back
+        as it reads.
 
         `admin_priority_level` sets which teammates take work first. It is optional, and
         names only the teammates whose level the request is setting: a teammate it leaves
@@ -46295,7 +46297,7 @@ components:
         level rather than being refused.
 
         Only a team whose `distribution_method` is `load_balanced` can have secondary
-        members, so `secondary_admin_ids` returns a 400 on any other team.
+        members, so making a teammate secondary returns a 400 on any other team.
         `primary_admin_ids` is accepted on every team, but a team that does not balance
         assignment does not report `admin_priority_level` back and does not use the levels
         to decide who work goes to.
@@ -46306,6 +46308,8 @@ components:
           type: array
           description: The ids of every teammate who should be a member of the team.
             Must contain at least one id, and no more than 1000.
+          minItems: 1
+          maxItems: 1000
           items:
             type: integer
           example: