<model>
<name>d_source</name>
<type>Digital</type>
<node_number>1</node_number>
<title>Add Parameters for Digital Source</title>
<split>4-V</split>
<param>
	<input_file default ="source.txt">Enter Input File (default=source.txt)</input_file>
	<input_load default ="1.0e-12">Enter Input Load</input_load>
</param>
</model>