<?xml version="1.0"?>
<!--
###################################################
##Null Source
###################################################
 -->
<block>
	<name>Null Source</name>
	<key>blocks_null_source</key>
	<import>from gnuradio import blocks</import>
	<make>blocks.null_source($type.size*$vlen)</make>
	<param>
		<name>Output Type</name>
		<key>type</key>
		<type>enum</type>
		<option>
			<name>Complex</name>
			<key>complex</key>
			<opt>size:gr.sizeof_gr_complex</opt>
		</option>
		<option>
			<name>Float</name>
			<key>float</key>
			<opt>size:gr.sizeof_float</opt>
		</option>
		<option>
			<name>Int</name>
			<key>int</key>
			<opt>size:gr.sizeof_int</opt>
		</option>
		<option>
			<name>Short</name>
			<key>short</key>
			<opt>size:gr.sizeof_short</opt>
		</option>
		<option>
			<name>Byte</name>
			<key>byte</key>
			<opt>size:gr.sizeof_char</opt>
		</option>
	</param>
	<param>
		<name>Vec Length</name>
		<key>vlen</key>
		<value>1</value>
		<type>int</type>
	</param>
	<param>
		<name>Num Outputs</name>
		<key>num_outputs</key>
		<value>1</value>
		<type>int</type>
	</param>
	<param>
		<name>Bus Connections</name>
		<key>bus_conns</key>
                <value>[[0,],]</value>
		<type>raw</type>
                <hide>part</hide>
	</param>
	<check>$num_outputs &gt;= 1</check>
	<check>$vlen &gt; 0</check>
	<source>
		<name>out</name>
		<type>$type</type>
		<vlen>$vlen</vlen>
		<nports>$num_outputs</nports>
	</source>
        <bus_structure_source>$bus_conns</bus_structure_source>
</block>