fix: GAPIC generation failed with 'Directory not empty' #1542
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GAPIC generation suddenly started failing with the message 'Directory not empty'. The reason was, when GAPIC generation logic kicked in for the first time there was no
_storage_v2directory and therefore it renamed thestorage_v2to_storage_v2. But when the GAPIC generation started for the second time, the_storage_v2directory is no longer empty and therefore the rename operation was unsuccessful.