<?xml version="1.0" ?>
<!-- plugins.sdf without the plugins -->
<sdf version="1.6">
  <world name="default">
    <physics name="fast" type="ignored">
      <real_time_factor>0</real_time_factor>
    </physics>

    <model name="box">
      <link name="link_1">
        <sensor name="camera" type="camera">
        </sensor>
      </link>
    </model>
  </world>
</sdf>

