Teuchos: How to Convert ParameterList to XML without "junk data"

[MalachiTimothyPhillips]

I have a Teuchos::ParameterList that I programatically generate which corresponds to:

<ParameterList name="velocity_solve">
  <Parameter name="Type" type="string" value="Belos"/>
  <Parameter name="Solver Type" type="string" value="Pseudo Block GMRES"/>
  <ParameterList name="Solver Types">
    <ParameterList name="Pseudo Block GMRES">
      <Parameter name="Maximum Iterations" type="int" value="30"/>
      <Parameter name="Convergence Tolerance" type="double" value="1.00000000000000005e-04"/>
      <Parameter name="Implicit Residual Scaling" type="string" value="Norm of Initial Residual"/>
      <Parameter name="Explicit Residual Scaling" type="string" value="Norm of Initial Residual"/>
      <Parameter name="Num Blocks" type="int" value="30"/>
      <Parameter name="Maximum Restarts" type="int" value="1"/>
      <Parameter name="Orthogonalization" type="string" value="ICGS"/>
    </ParameterList>
  </ParameterList>
</ParameterList>

For my use-case, I would like to output the above Teuchos::ParameterList to an XML file.
For this, I construct a Teuchos::XMLParameterListWriter from the ParameterList

  // solver_parameters is a Teuchos::ParameterList corresponding to the above input
  Teuchos::XMLParameterListWriter myXMLWriter;
  auto myXMLObject = myXMLWriter.toXML(solver_parameters);
  myXMLObject.print(text, 0);

However, this outputs additional fields docString, id, isDefault, and isUsed, as below:

<ParameterList id="19" name="velocity_solve">
  <Parameter docString="" id="8" isDefault="false" isUsed="true" name="Type" type="string" value="Belos"/>
  <Parameter docString="" id="9" isDefault="false" isUsed="true" name="Solver Type" type="string" value="Pseudo Block GMRES"/>
  <ParameterList id="18" name="Solver Types">
    <ParameterList id="17" name="Pseudo Block GMRES">
      <Parameter docString="" id="10" isDefault="false" isUsed="true" name="Maximum Iterations" type="int" value="30"/>
      <Parameter docString="" id="11" isDefault="false" isUsed="true" name="Convergence Tolerance" type="double" value="1.00000000000000005e-04"/>
      <Parameter docString="" id="12" isDefault="false" isUsed="true" name="Implicit Residual Scaling" type="string" value="Norm of Initial Residual"/>
      <Parameter docString="" id="13" isDefault="false" isUsed="true" name="Explicit Residual Scaling" type="string" value="Norm of Initial Residual"/>
      <Parameter docString="" id="14" isDefault="false" isUsed="true" name="Num Blocks" type="int" value="30"/>
      <Parameter docString="" id="15" isDefault="false" isUsed="true" name="Maximum Restarts" type="int" value="1"/>
      <Parameter docString="" id="16" isDefault="false" isUsed="true" name="Orthogonalization" type="string" value="ICGS"/>
    </ParameterList>
  </ParameterList>
</ParameterList>

Is it possible to avoid outputting these additional fields?

Trilinos/packages/teuchos/parameterlist/src/Teuchos_ParameterEntryXMLConverter.cpp

Line 108 in 77005ad

ParameterEntryXMLConverter::fromParameterEntrytoXML(

would suggest no.