RTML file

<xml>
    <material type-name="d9698f8b-59d1-48fd-88c9-82b19df1ccc2" render-engine-id="99999999-9999-9999-9999-999999999999" type-id="D9698F8B-59D1-48FD-88C9-82B19DF1CCC2" notes="" hidden="false" reference="false" auto-delete="false">
        <parameters>
            <alphaFloat type="float">0.0000</alphaFloat>
            <alphaTexture type="bool">false</alphaTexture>
            <alphaUFloat type="float">0.0000</alphaUFloat>
            <alphaUTexture type="bool">false</alphaUTexture>
            <alphaVFloat type="float">0.0000</alphaVFloat>
            <alphaVTexture type="bool">false</alphaVTexture>
            <eta type="color">0,0,0,0</eta>
            <k type="color">0,0,0,0</k>
            <extEtaFloat type="float">0.0000</extEtaFloat>
            <extEtaTexture type="bool">false</extEtaTexture>
            <distribution type="string">beckmann</distribution> <!-- This is the parameter which I want to read -->
            <material type="string">TiN</material>
        </parameters>
        <simulation>
            <ambient type="color">0,0,0,0</ambient>
            <diffuse type="color">0.501960813999176,0.501960813999176,0.501960813999176,0</diffuse>
            <emission type="color">0,0,0,0</emission>
            <specular type="color">1,1,1,0</specular>
            <reflection type="color">1,1,1,0</reflection>
            <transparent type="color">1,1,1,0</transparent>
            <shine type="double">0</shine>
            <transparency type="double">0</transparency>
            <reflectivity type="double">0</reflectivity>
            <ior type="double">1</ior>
        </simulation>
    </material>
    <meta-data>
        <renderer-name>Generic</renderer-name>
        <type-name>Mitsuba Rough Conductor material</type-name>
    </meta-data>
    <embedded-files/>
    <thumbnail>none</thumbnail>
</xml>