Returns an instance of a :class:`gspread.models.Cell`.

        :param label: Cell label in A1 notation
                      Letter case is ignored.
        :type label: str
        :param value_render_option: (optional) Determines how values should be
                                    rendered in the the output. See
                                    `ValueRenderOption`_ in the Sheets API.
        :type value_render_option: str

        .. _ValueRenderOption: https://developers.google.com/sheets/api/reference/rest/v4/ValueRenderOption

        Example:

        >>> worksheet.acell('A1')
        <Cell R1C1 "I'm cell A1">

def acell(self, label, value_render_option='FORMATTED_VALUE'):
        """Returns an instance of a :class:`gspread.models.Cell`.

        :param label: Cell label in A1 notation
                      Letter case is ignored.
        :type label: str
        :param value_render_option: (optional) Determines how values should be
                                    rendered in the the output. See
                                    `ValueRenderOption`_ in the Sheets API.
        :type value_render_option: str

        .. _ValueRenderOption: https://developers.google.com/sheets/api/reference/rest/v4/ValueRenderOption

        Example:

        >>> worksheet.acell('A1')
        <Cell R1C1 "I'm cell A1">

        """

        return self.cell(
            *(a1_to_rowcol(label)),
            value_render_option=value_render_option
        )