@@ -369,19 +369,19 @@ def load(path_prefix):
369369 adf .constant_aliases = set (json .loads (meta [b"constants" ].decode ()))
370370 return adf
371371
372- def export_tree (self , filename_or_file , treename = "tree" , dropAliasColumns = True ,compression = uproot .LZMA (level = 9 ), chunk_bytes = None ):
372+ def export_tree (self , filename_or_file , treename = "tree" , dropAliasColumns = True ,compression = uproot .LZMA (level = 5 ) ):
373373 is_path = isinstance (filename_or_file , str )
374374
375375 if is_path :
376376 with uproot .recreate (filename_or_file ,compression = compression ) as f :
377- self ._write_to_uproot (f , treename , dropAliasColumns , chunk_bytes = chunk_bytes )
377+ self ._write_to_uproot (f , treename , dropAliasColumns )
378378 self ._write_metadata_to_root (filename_or_file , treename )
379379 else :
380380 self ._write_to_uproot (filename_or_file , treename , dropAliasColumns )
381381 for subframe_name , entry in self ._subframes .items ():
382382 entry ["frame" ]._write_metadata_to_root (filename_or_file , f"{ treename } __subframe__{ subframe_name } " )
383383
384- def _write_to_uproot (self , uproot_file , treename , dropAliasColumns , chunk_bytes = None ):
384+ def _write_to_uproot (self , uproot_file , treename , dropAliasColumns ):
385385 export_cols = [col for col in self .df .columns if not dropAliasColumns or col not in self .aliases ]
386386 dtype_casts = {col : np .float32 for col in export_cols if self .df [col ].dtype == np .float16 }
387387 export_df = self .df [export_cols ].astype (dtype_casts )
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