`DeleteWithMetaData` function in Python about sptag HOT 1 CLOSED

For those who will come with the same question, Here is what I found:

1. There is a function called DeleteByMetaData that takes the metadata string as input and deletes all samples in the tree with this metadata name (Not exposed in the documentation sadly).
2. The function won't work if the creation or the addition of samples in the tree is done without enabling metadata deletion ... To do this I made the second to last argument in the BuildWithMetaData and AddWithMetaData with True (Didn't work without it).

index.AddWithMetaData(index_set, meta_data, index_set.shape[0], True, False)
# or
index.BuildWithMetaData(index_set, meta_data, index_set.shape[0], True, False)
# then
index.DeleteByMetaData(sample_name+'\n')

from sptag.