title: How to create many to many relationship between models in loopback?
body: <p>I might be missing something obvious here but have spent hours on this and unable to find a solution.</p>
  
  <p>Suppose I have an employee model</p>
  
  <pre><code>"properties": {
      "name": {
        "type": "string",
        "required": true
      },
      "age": {
        "type": "number",
        "required": true
      }
    };
  </code></pre>
  
  <p>and its child model</p>
  
  <pre><code>"properties": {
      "Code": {
        "type": "string",
        "required": true
      },
      "Desc": {
        "type": "string",
        "required": true
      }
    }
  </code></pre>
  
  <p>How do I create a many to many relationship between them?</p>