get_fields method Leave feedback

def get_fields(self, file_path):
    ...

from groupdocs.search.common import DocumentField

class LogExtractor:
    extensions = [".log"]

    def get_fields(self, source):
        if isinstance(source, str):
            # source is a file path
            return [
                DocumentField("FileName", source),
                DocumentField("Content", open(source, encoding="utf-8-sig").read()),
            ]
        # source is a stream
        return [DocumentField("Content", source.read().decode("utf-8-sig"))]

extractor = LogExtractor()
fields = extractor.get_fields("example.log")
for field in fields:
    print(f"{field.name}: {field.value}")

def get_fields(self, stream):
    ...