<?xml version="1.0"?><robotxmlns:xacro="http://ros.org/wiki/xacro"><xacro:macroname="aquanaute_gazebo"><!-- Include macros for dynamics plugins --><xacro:includefilename="$(find aquanaute_gazebo)/urdf/macros.xacro"/><!-- Defines the base vehicle --><xacro:includefilename="$(find aquanaute_description)/urdf/aquanaute_description.urdf.xacro"/><!-- Attach hydrodynamics plugin --><xacro:usv_dynamics_gazeboname="aquanaute_dynamics_plugin"/></xacro:macro></robot>