override val analysisSession: KaFirSession,
) : KaDestructuringDeclarationSymbol(), KaFirSymbol<FirVariableSymbol<*>> {

    init {
        require(firSymbol.name == SpecialNames.DESTRUCT)
    }

    override val psi: KtDestructuringDeclaration
        get() = withValidityAssertion {
            when (val psi = firSymbol.fir.psi) {
                is KtDestructuringDeclaration -> psi

If you declare it as is, because it is a singular value, **FastAPI** will assume that it is a query parameter.

But you can instruct **FastAPI** to treat it as another body key using `Body`:

=== "Python 3.10+"

    ```Python hl_lines="23"
    {!> ../../../docs_src/body_multiple_params/tutorial003_an_py310.py!}
    ```