public Class<ParametersT> getParametersClass() {
    return parametersClass;
  }
A function which serializes a Parameters object.

<p>This interface exists only so we have a type we can reference in {@link #create}. Users
should not use this directly; see the explanation in {@link #create}.
java_src/src/main/java/com/google/crypto/tink/internal/ParametersSerializer.java