@Override
    @Pattern(regexp = "(" + OpenId.REDIRECT_URI + "|" + OpenId.POST_LOGOUT_REDIRECT_URI + ")")
    @JsonProperty
    @JsonPropertyDescription("The name of the URI parameter to use when passing the logout redirect URI to the IDP. "
                             + "This is here as the spec seems to have changed from 'redirect_uri' to " +
                             "'post_logout_redirect_uri'.")
    public String getLogoutRedirectParamName() {
        return logoutRedirectParamName;
    }
@return The type of Open ID Connnect identity provider in use.
stroom-security/stroom-security-openid-api/src/main/java/stroom/security/openid/api/AbstractOpenIdConfig.java