if (this !is KtExpression) return null
        val calleeExpression = deparenthesize(this) ?: return null
        if (calleeExpression is KtCallExpression) return null
        val callExpression = parentOfType<KtCallExpression>() ?: return null
        if (deparenthesize(callExpression.calleeExpression) != calleeExpression) return null
        return callExpression
    }

    /**

                return false
            }
        }

        val firSymbol = symbol.firSymbol
        if (firSymbol is FirPropertySymbol && firSymbol.isForeignValue) {
            return false
        }

        return true
    }

    fun getContainingDeclarationByPsi(symbol: KtSymbol): KtDeclarationSymbol? {
        val containingDeclaration = getContainingPsi(symbol) ?: return null

    return firSymbolBuilder.buildSymbol(argument)
}

private fun convertArgument(argument: FirRegularClassSymbol, firSymbolBuilder: KtSymbolByFirBuilder): Any? {
    return firSymbolBuilder.classifierBuilder.buildClassLikeSymbol(argument)
}

private fun convertArgument(argument: FirNamedFunctionSymbol, firSymbolBuilder: KtSymbolByFirBuilder): Any? {

        val expressionCall = binaryExpression.getOrBuildFirSafe<FirQualifiedAccessExpression>(firResolveSession) ?: return null
        val receiverCall = expressionCall.explicitReceiver as? FirQualifiedAccessExpression ?: return null

        return receiverCall.resolvedType
    }

internal fun Regex.matchAtPolyfill(
  input: CharSequence,
  index: Int,
): MatchResult? {
  val candidate = find(input, index) ?: return null
  if (candidate.range.first != index) return null // Didn't match where it should have.
  return candidate
}

@JvmField
val EMPTY_BYTE_ARRAY: ByteArray = ByteArray(0)

/** Byte order marks. */
internal val UNICODE_BOMS =
  Options.of(
    // UTF-8.

        require(callableSymbol is KtFirSymbol<*>)
        if (callableSymbol is KtFirBackingFieldSymbol) return emptyList()
        if (callableSymbol is KtValueParameterSymbol) {
            return callableSymbol.getAllOverriddenSymbols()
        }
        (callableSymbol.firSymbol as? FirIntersectionCallableSymbol)?.let { intersectionSymbol ->
            return intersectionSymbol.intersections.flatMap {

  private fun buildGoogle(bootstrapClient: OkHttpClient): DnsOverHttps {
    return DnsOverHttps.Builder()
      .client(bootstrapClient)
      .url("https://dns.google/dns-query".toHttpUrl())
      .bootstrapDnsHosts(getByIp("8.8.4.4"), getByIp("8.8.8.8"))
      .build()
  }

  private fun buildGooglePost(bootstrapClient: OkHttpClient): DnsOverHttps {
    return DnsOverHttps.Builder()
      .client(bootstrapClient)

      if (methodName == "supports" && Boolean::class.javaPrimitiveType == returnType) {
        return true // ALPN is supported.
      } else if (methodName == "unsupported" && Void.TYPE == returnType) {
        this.unsupported = true // Peer doesn't support ALPN.
        return null
      } else if (methodName == "protocols" && callArgs.isEmpty()) {
        return protocols // Client advertises these protocols.

            val string = reader.readUtf8String()
            return parseUtcTime(string)
          }

          override fun encode(
            writer: DerWriter,
            value: Long,
          ) {
            val string = formatUtcTime(value)
            return writer.writeUtf8(string)
          }
        },
    )

  @Throws(IOException::class)
  private fun cacheWritingResponse(
    cacheRequest: CacheRequest?,
    response: Response,
  ): Response {
    // Some apps return a null body; for compatibility we treat that like a null cache request.
    if (cacheRequest == null) return response
    val cacheBodyUnbuffered = cacheRequest.body()

    val source = response.body.source()
    val cacheBody = cacheBodyUnbuffered.buffer()