Multiplayer ロール

"roleTypes": {
  "myroletype1": { // Must be lowercase alphanumeric.
    "ownerManaged": true, // Can be true only on sessions that have the "hasOwners" capability set.
                          // If true, only the owner of the session can assign this role to players.
    "mutableRoleSettings": ["max", "target"], // Only these role settings can be modified during the
                                              // session. Exclude role settings to lock them.
    "roles": {
      "role1": { // Must be lowercase alphanumeric.
        "max": 3, // Maximum number of players assigned to this role. Enforced by MPSD.
        "target": 2 // Target number of players to assign this role to. Not enforced by MPSD.
      },
      "role2": {
        ...
      }
  },
  "myroletype2": {
    ...
  }
},