Test run of new docs

docs/reference-migration-get_feature_upgrade_status.asciidoc

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+[[reference-migration-get_feature_upgrade_status]]
+
+////////
+===========================================================================================================================
+||                                                                                                                       ||
+||                                                                                                                       ||
+||                                                                                                                       ||
+||        ██████╗ ███████╗ █████╗ ██████╗ ███╗   ███╗███████╗                                                            ||
+||        ██╔══██╗██╔════╝██╔══██╗██╔══██╗████╗ ████║██╔════╝                                                            ||
+||        ██████╔╝█████╗  ███████║██║  ██║██╔████╔██║█████╗                                                              ||
+||        ██╔══██╗██╔══╝  ██╔══██║██║  ██║██║╚██╔╝██║██╔══╝                                                              ||
+||        ██║  ██║███████╗██║  ██║██████╔╝██║ ╚═╝ ██║███████╗                                                            ||
+||        ╚═╝  ╚═╝╚══════╝╚═╝  ╚═╝╚═════╝ ╚═╝     ╚═╝╚══════╝                                                            ||
+||                                                                                                                       ||
+||                                                                                                                       ||
+||    This file is autogenerated, DO NOT send pull requests that changes this file directly.                             ||
+||    You should update the script that does the generation, which can be found in:                                      ||
+||    https://github.com/elastic/elastic-client-generator-js                                                             ||
+||                                                                                                                       ||
+||    You can run the script with the following command:                                                                 ||
+||       npm run elasticsearch -- --version <version>                                                                    ||
+||                                                                                                                       ||
+||                                                                                                                       ||
+||                                                                                                                       ||
+===========================================================================================================================
+////////
+
+[discrete]
+=== client.migration.getFeatureUpgradeStatus
+
+Find out whether system features need to be upgraded or not
+
+{ref}/migration-api-feature-upgrade.html[{es} documentation]
+
+[discrete]
+==== Function signature
+
+[source,ts]
+----
+(MigrationGetFeatureUpgradeStatusRequest, options?): Promise<MigrationGetFeatureUpgradeStatusResponse>
+----
+
+[discrete]
+===== `MigrationGetFeatureUpgradeStatusRequest`
+
+[source,ts]
+----
+interface MigrationGetFeatureUpgradeStatusRequest extends <<shared-type-request-base, RequestBase>> {
+}
+----
+
+[discrete]
+===== `MigrationGetFeatureUpgradeStatusResponse`
+
+[source,ts]
+----
+interface MigrationGetFeatureUpgradeStatusResponse {
+  features: MigrationGetFeatureUpgradeStatusMigrationFeature[]
+  migration_status: MigrationGetFeatureUpgradeStatusMigrationStatus
+}
+----
+