How to use the s3contents.s3fs.NoSuchFile function in s3contents

def read(self, path):
        key = self.as_key(path)
        if not self.isfile(path):
            raise NoSuchFile(self.as_path(key))
        obj = self.resource.Object(self.bucket_name, key)
        text = obj.get()["Body"].read().decode("utf-8")
        return text

def lstat(self, path):
        key = self.as_key(path)
        if not self.isfile(path):
            raise NoSuchFile(self.as_path(key))
        obj = self.resource.Object(self.bucket_name, key)

        info = {}
        info["ST_MTIME"] = obj.last_modified
        return info

def __init__(self, path, *args, **kwargs):
        super(NoSuchFile, self).__init__(*args, **kwargs)
        self.path = path