get rid of assert

pyiceberg/table/__init__.py

@@ -2474,14 +2474,13 @@ def _dataframe_to_data_files(
         property_name=TableProperties.WRITE_TARGET_FILE_SIZE_BYTES,
         default=TableProperties.WRITE_TARGET_FILE_SIZE_BYTES_DEFAULT,
     )
-    assert isinstance(target_file_size, int)
 
     # This is an iter, so we don't have to materialize everything every time
     # This will be more relevant when we start doing partitioned writes
     yield from write_file(
         io=io,
         table_metadata=table_metadata,
-        tasks=iter([WriteTask(write_uuid, next(counter), batches) for batches in bin_pack_arrow_table(df, target_file_size)]),
+        tasks=iter([WriteTask(write_uuid, next(counter), batches) for batches in bin_pack_arrow_table(df, target_file_size)]),  # type: ignore
     )