def METHOD_NAME(self, filter, top_k):
    zero_vector = [0.0] * self.embedding_dimensions
    query_result = self.pinecone_index.query(vector=zero_vector, filter=filter, top_k=top_k)
    vector_ids = [doc.id for doc in query_result.matches]
    if len(vector_ids) > 0:
        self.pinecone_index.delete(ids=vector_ids)