create Index
suspend fun createIndex(mappingsAndSettings: IndexSettingsAndMappingsDSL, waitForActiveShards: Int? = null, masterTimeOut: Duration? = null, timeout: Duration? = null, extraParameters: Map<String, String>? = null): IndexCreateResponse
suspend fun createIndex(waitForActiveShards: Int? = null, masterTimeOut: Duration? = null, timeout: Duration? = null, extraParameters: Map<String, String>? = null, block: IndexSettingsAndMappingsDSL.() -> Unit): IndexCreateResponse