title: Remove double quotes from json
body: <p>I'm trying to calculate cosine similarity between text and image and I have two json files like this</p>
  
  <pre><code>[ {
    "text" : [ -0.1414141058921814, 0.033384405076503754, 0.03852704539895058],
    "id" : "pseudo_label_1"
  }]
  </code></pre>
  
  <p>and </p>
  
  <pre><code>[ {
    "_img" : "[[-0.0331673,-0.138877,-0.0187086,0.065926]]",
    "key" : "image_1.jpg"
  }]
  </code></pre>
  
  <p>How can I remove double quotes and square brackets from a value</p>
  
  <pre><code>"_img" : "[[-0.0331673,-0.138877,-0.0187086,0.065926]]"
  </code></pre>
  
  <p>to get the value like this?</p>
  
  <pre><code>"_img" : [-0.0331673,-0.138877,-0.0187086,0.065926]
  </code></pre>