add an assert

Author: lucidrains

pyproject.toml

@@ -1,6 +1,6 @@
 [project]
 name = "vector-quantize-pytorch"
-version = "1.14.39"
+version = "1.14.40"
 description = "Vector Quantization - Pytorch"
 authors = [
     { name = "Phil Wang", email = "lucidrains@gmail.com" }

vector_quantize_pytorch/vector_quantize_pytorch.py

@@ -146,6 +146,8 @@ def sample_multinomial(total_count, probs):
         total_count -= s
         remainder -= p
 
+    assert total_count == 0, f'invalid total count {total_count}'
+
     return sample.to(device)
 
 def all_gather_sizes(x, dim):