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-rw-r--r--coverage/numbits.py4
1 files changed, 4 insertions, 0 deletions
diff --git a/coverage/numbits.py b/coverage/numbits.py
index 826018d2..6ca96fbc 100644
--- a/coverage/numbits.py
+++ b/coverage/numbits.py
@@ -63,6 +63,10 @@ def numbits_to_nums(numbits):
Returns:
A list of ints.
+
+ When registered as a SQLite function by :func:`register_sqlite_functions`,
+ this returns a string, a JSON-encoded list of ints.
+
"""
nums = []
for byte_i, byte in enumerate(bytes_to_ints(numbits)):