code: @Beta
      public MSICredentials withObjectId(String objectId) {
          this.objectId = objectId;
          this.clientId = null;
          this.identityId = null;
          return this;
      }
docs: Specifies the object id associated with a user assigned managed service identity
  resource that should be used to retrieve the access token.
  
  @param objectId Object ID of the identity to use when authenticating to Azure AD.
  @return MSICredentials