trying to add attr to fs config

fs.py

@@ -65,7 +65,7 @@ _GOV_REPORT_CITATION = r"""
 class FSConfig(datasets.BuilderConfig):
     """BuilderConfig for FS."""
 
-    def __init__(self, features, data_url, citation, url, **kwargs):
+    def __init__(self, features, data_url, citation, url, max_source_length, **kwargs):
         """BuilderConfig for FS.
         Args:
           features: `list[string]`, list of the features that will appear in the
@@ -83,6 +83,7 @@ class FSConfig(datasets.BuilderConfig):
         self.data_url = data_url
         self.citation = citation
         self.url = url
+        self.max_source_length = max_source_length
 
 
 class Fs(datasets.GeneratorBasedBuilder):
@@ -98,6 +99,7 @@ class Fs(datasets.GeneratorBasedBuilder):
             data_url="https://huggingface.co/datasets/tau/fs/resolve/main/data/summ_screen_fd.zip",
             citation=_SUMM_SCREEN_CITATION,
             url="https://github.com/mingdachen/SummScreen",
+            max_source_length=None,
         ),
         FSConfig(
             name="gov_report",
@@ -106,6 +108,7 @@ class Fs(datasets.GeneratorBasedBuilder):
             data_url="https://huggingface.co/datasets/tau/fs/resolve/main/data/gov_report.zip",
             citation=_GOV_REPORT_DESCRIPTION,
             url="https://gov-report-data.github.io/",
+            max_source_length=None,
         ),
     ]
 
@@ -163,7 +166,7 @@ def _get_task_name_from_data_url(data_url):
 
 
 if __name__ == '__main__':
-    dataset = load_dataset("tau/fs", "summ_screen_fd")
+    dataset = load_dataset("tau/fs", "summ_screen_fd", max_source_length=512)
     x = 5
 #    builder = Scrolls("scrolls", "summ_screen_fd")
 #    builder.download_and_prepare()