import okio.IOException

/**
 * Protocols that OkHttp implements for [ALPN][ietf_alpn] selection.
 *
 * ## Protocol vs Scheme
 *
 * Despite its name, [java.net.URL.getProtocol] returns the [scheme][java.net.URI.getScheme] (http,
 * https, etc.) of the URL, not the protocol (http/1.1, spdy/3.1, etc.). OkHttp uses the word
 * *protocol* to identify how HTTP messages are framed.
 *

                - message: url must have schema one of [http, https, file, oci]
                  rule: 'isURL(self) ? (url(self).getScheme() in ['''', ''http'',
                    ''https'', ''oci'', ''file'']) : (isURL(''http://'' + self) &&
                    url(''http://'' +self).getScheme() in ['''', ''http'', ''https'',
                    ''oci'', ''file''])'
              verificationKey:
                type: string