Unknown keyword warnings you should define your own Meta Schema

[david0]

We get warnings like these:

08:53:34.011 [Test worker] WARN com.networknt.schema.JsonMetaSchema -- Unknown keyword components - you should define your own Meta Schema. If the keyword is irrelevant for validation, just use a NonValidationKeyword
08:53:34.029 [Test worker] WARN com.networknt.schema.JsonMetaSchema -- Unknown keyword x-parent - you should define your own Meta Schema. If the keyword is irrelevant for validation, just use a NonValidationKeyword
08:53:34.036 [Test worker] WARN com.networknt.schema.JsonMetaSchema -- Unknown keyword example - you should define your own Meta Schema. If the keyword is irrelevant for validation, just use a NonValidationKeyword
08:53:34.364 [Test worker] WARN com.networknt.schema.JsonMetaSchema -- Unknown keyword nullable - you should define your own Meta Schema. If the keyword is irrelevant for validation, just use a NonValidationKeyword

Is there any chance to fix that or add least add them as NonValidationKeyword?