title: remove key value pair from an array in mule 4
body: <p>I'm facing issue to apply logic to remove one key from the array. Below i have added my payload that i am getting after processing now from here i want to remove the object key. How to remove the contact key dynamically?</p>
  <pre><code> [{
      &quot;TB1&quot;: [{
              &quot;object&quot;: &quot;TB1&quot;,
              &quot;Name&quot;: 200
          },
          {
              &quot;object&quot;: &quot;TB1&quot;,
              &quot;Name&quot;: 220
          }
      ]
    },
    {
      &quot;TB2&quot;: [{
          &quot;object&quot;: &quot;TB2&quot;,
          &quot;Field1&quot;: 100
      }]
    },
    {
      &quot;TB3&quot;: [{
          &quot;object&quot;: &quot;TB3&quot;,
          &quot;Field2&quot;: 1300
      }]
    }]
  </code></pre>
  <p>expected:</p>
  <pre><code> [{
      &quot;TB1&quot;: [{
              &quot;Name&quot;: 200
          },
          {
              &quot;Name&quot;: 220
          }
      ]
  },
  {
      &quot;TB2&quot;: [{
          &quot;Field1&quot;: 100
      }]
  },
  {
      &quot;TB3&quot;: [{
          &quot;Field2&quot;: 1300
      }]
  }]
  </code></pre>