else -> InsecureExtendedTrustManager(trustManager as X509ExtendedTrustManager, insecureHosts)
    }
  }

  /**
   * Returns a key manager for the held certificate and its chain. Returns an empty key manager if
   * `heldCertificate` is null.
   */
  @JvmStatic
  fun newKeyManager(
    keyStoreType: String?,
    heldCertificate: HeldCertificate?,