<!-- ##### SECTION Title ##### -->
streams

<!-- ##### SECTION Short_Description ##### -->


<!-- ##### SECTION Long_Description ##### -->
<para>

</para>

<!-- ##### SECTION See_Also ##### -->
<para>

</para>

<!-- ##### SECTION Stability_Level ##### -->


<!-- ##### FUNCTION test_stream_seekable_writepart ##### -->
<para>

</para>

@s: 


<!-- ##### FUNCTION test_stream_seekable_readpart ##### -->
<para>

</para>

@s: 


<!-- ##### MACRO SEEKABLE_SUBSTREAM_WAYS ##### -->
<para>

</para>



<!-- ##### FUNCTION test_seekable_substream_writepart ##### -->
<para>

</para>

@s: 
@type: 


<!-- ##### FUNCTION test_seekable_substream_readpart ##### -->
<para>

</para>

@s: 


