<h4>Is equal</h4>

<pre>
  <code>
      'field-name' => [ '_eq' => 'must be equal to this text' ],
  </code>
</pre>

<h4>Isn't equal</h4>

<pre>
  <code>
      'field-name' => [ '_neq' => 'must not be equal to this text' ],
  </code>
</pre>

<h4>Less than</h4>

<pre>
  <code>
      'field-name' => [ '_lt' => 10 ],
  </code>
</pre>

<h4>Greater than</h4>

<pre>
  <code>
      'field-name' => [ '_gt' => 10 ],
  </code>
</pre>

<h4>Less than or equal</h4>

<pre>
  <code>
      'field-name' => [ '_lte' => 10 ],
  </code>
</pre>

<h4>Greater than or equal</h4>

<pre>
  <code>
      'field-name' => [ '_gte' => 10 ],
  </code>
</pre>

<h4>Greater than or equal</h4>

<pre>
  <code>
      'field-name' => [ '_gte' => 10 ],
  </code>
</pre>

<h4>In array</h4>

<pre>
  <code>
      'field-name' => [ '_in' => ['value_1', 'value_2'] ],
  </code>
</pre>

<h4>Not in array</h4>

<pre>
  <code>
      'field-name' => [ '_nin' => ['value_1', 'value_2'] ],
  </code>
</pre>

<h4>Contains</h4>

<pre>
  <code>
      'field-name' => [ '_contains' => 'must be contains this text' ],
  </code>
</pre>

<h4>Not contain</h4>

<pre>
  <code>
      'field-name' => [ '_ncontains' => 'must not contain this text' ],
  </code>
</pre>

<h4>Regex</h4>

<pre>
  <code>
      'field-name' => [ '_re' => '^test' ],
  </code>
</pre>
