getMetaData(), introduced with 53600ddc6daedef216503679a40eaaa2a5d94ba5 is unknown to 9 LTS. The old _getMetaData(), on the other hand, should still work in v10 and just throw a deprecated notice.
I suggest to simply undo commit 53600ddc6daedef216503679a40eaaa2a5d94ba5 for compatibility in both v9 LTS and v10. Careful, I did not yet test this in v10.2!
getMetaData(), introduced with 53600ddc6daedef216503679a40eaaa2a5d94ba5 is unknown to 9 LTS. The old_getMetaData(), on the other hand, should still work in v10 and just throw a deprecated notice.I suggest to simply undo commit 53600ddc6daedef216503679a40eaaa2a5d94ba5 for compatibility in both v9 LTS and v10. Careful, I did not yet test this in v10.2!