load_document method Leave feedback

def load_document(self):
    ...

import io
import os
from groupdocs.search.common import IDocumentLoader

class MyDocumentLoader(IDocumentLoader):
    def __init__(self, file_path):
        self.file_path = file_path
        self.document_key = os.path.basename(file_path)

    def close_document(self):
        pass

    def load_document(self):
        extension = os.path.splitext(self.file_path)[1]
        with open(self.file_path, "rb") as f:
            buffer = f.read()
        return io.BytesIO(buffer)