arangosh&gt; db.example.insert({ a:  <span class="hljs-number">1</span> } );
{ 
  <span class="hljs-string">"_id"</span> : <span class="hljs-string">"example/1095489991"</span>, 
  <span class="hljs-string">"_rev"</span> : <span class="hljs-string">"1095489991"</span>, 
  <span class="hljs-string">"_key"</span> : <span class="hljs-string">"1095489991"</span> 
}
arangosh&gt; db.example.remove(<span class="hljs-string">"example/11265325374"</span>, {overwrite: <span class="hljs-literal">true</span>, waitForSync: <span class="hljs-literal">false</span>})
<span class="hljs-literal">false</span>