@classmethod<EOL><INDENT>def parse(cls, fptr, offset, length):<DEDENT>
num_bytes = offset + length - fptr.tell()<EOL>read_buffer = fptr.read(num_bytes)<EOL>label = read_buffer.decode('<STR_LIT:utf-8>')<EOL>return cls(label, length=length, offset=offset)<EOL>
Parse Label box.

        Parameters
        ----------
        fptr : file
            Open file object.
        offset : int
            Start position of box in bytes.
        length : int
            Length of the box in bytes.

        Returns
        -------
        LabelBox
            Instance of the current label box.