* for [this]. Otherwise, returns `null`.
     */
    @KaAnalysisApiInternals
    public fun KtDeclaration.getOriginalDeclaration(): KtDeclaration? =
        withValidityAssertion { analysisSession.originalPsiProvider.getOriginalDeclaration(this) }

    /**
     * If [this] is a fake file analyzed in dependent session, returns the original file for [this]. Otherwise, returns `null`.
     */

import org.jetbrains.kotlin.psi.KtFile

internal class KaFe10OriginalPsiProvider(
    override val analysisSession: KaFe10Session
) : KaOriginalPsiProvider(), KaFe10SessionComponent {
    override fun getOriginalDeclaration(declaration: KtDeclaration): KtDeclaration? = null

    override fun getOriginalKtFile(file: KtFile): KtFile? = null

internal class KaFirOriginalPsiProvider(
    override val analysisSession: KaFirSession,
    override val token: KaLifetimeToken,
) : KaOriginalPsiProvider(), KaFirSessionComponent {
    override fun getOriginalDeclaration(declaration: KtDeclaration): KtDeclaration? = declaration.originalDeclaration

    override fun getOriginalKtFile(file: KtFile): KtFile? = file.originalKtFile