deploy: 2f025f401e

api/basic_json/to_bjdata/index.md

@@ -44,6 +44,10 @@ The exact mapping and its limitations are described on a [dedicated page](https:
 
 Strong guarantee: if an exception is thrown, there are no changes in the JSON value.
 
+## Exceptions
+
+- Throws [`other_error.502`](https://json.nlohmann.me/home/exceptions/#jsonexceptionother_error502) if `use_type` is true and `use_size` is false.
+
 ## Complexity
 
 Linear in the size of the JSON value `j`.