<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:
 def get(equity):
 """ Retrieve all current options chains for given equity. .. versionchanged:: 0.5.0 Eliminate special exception handling. Parameters equity : str Equity for which to retrieve options data. Returns optdata : :class:`~pynance.opt.core.Options` All options data for given equity currently available from Yahoo! Finance. Examples Basic usage:: To show useful information (expiration dates, stock price, quote time) when retrieving options data, you can chain the call to :func:`get` with :meth:`~pynance.opt.core.Options.info`:: Expirations: Stock: 15.93 Quote time: 2015-03-07 16:00 """

    _optmeta = pdr.data.Options(equity, 'yahoo')
    _optdata = _optmeta.get_all_data()
    return Options(_optdata)