public static com.google.cloud.websecurityscanner.v1beta.ScanConfig.Authentication
              .CustomAccount
          parseFrom(
              com.google.protobuf.CodedInputStream input,
              com.google.protobuf.ExtensionRegistryLite extensionRegistry)
              throws java.io.IOException {
        return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
            PARSER, input, extensionRegistry);
      }
<pre>
Required. The login form URL of the website.
</pre>

<code>string login_url = 3 [(.google.api.field_behavior) = REQUIRED];</code>

@return The bytes for loginUrl.
java-websecurityscanner/proto-google-cloud-websecurityscanner-v1beta/src/main/java/com/google/cloud/websecurityscanner/v1beta/ScanConfig.java