Unable to get the square brackets for the single individual records while using the json_agg inside the json_compose in Teradata-sql-assistance

Question

According to the documentation, if we have the following data in a table named emp_table

   empID         company       empName       empAge
     1,        'Teradata',    'Cameron',       24 
     2,        'Teradata',    'Justin',        34 
     3,        'Apple',       'Someone',       34

and if we use the following query :

SELECT JSON_Compose(T.company, T.employees)
FROM
 (
  SELECT company, JSON_agg(empID AS id, 
     empName AS name, 
     empAge AS age) AS employees
  FROM emp_table
  GROUP BY company
 ) AS T;

we are supposed to get :

JSON_Compose
------------
{
  "company" : "Teradata",
  "employees" : [ 
     { "id" : 1, "name" : "Cameron", "age" : 24 },
     { "id" : 2, "name" : "Justin", "age" : 34 }
  ]
}
{
  "company" : "Apple",
  "employees" : [ 
     { "id" : 3, "name" : "Someone", "age" : 24 } 
  ]
}

But when I try to follow the same steps, I'm not able to get the square bracket for the individual records. The result I'm getting is :

JSON_Compose
------------
{
  "company" : "Teradata",
  "employees" : [ 
     { "id" : 1, "name" : "Cameron", "age" : 24 },
     { "id" : 2, "name" : "Justin", "age" : 34 }
  ]
}
{
  "company" : "Apple",
  "employees" : 
     { "id" : 3, "name" : "Someone", "age" : 24 } 
}

Is there any way to get square bracket for individual records as well ?