def from_dict(data, ctx):
        """
        Instantiate a new LimitOrder from a dict (generally from loading a JSON
        response). The data used to instantiate the LimitOrder is a shallow
        copy of the dict passed in, with any complex child types instantiated
        appropriately.
        """

        data = data.copy()

        if data.get('clientExtensions') is not None:
            data['clientExtensions'] = \
                ctx.transaction.ClientExtensions.from_dict(
                    data['clientExtensions'], ctx
                )

        if data.get('units') is not None:
            data['units'] = ctx.convert_decimal_number(
                data.get('units')
            )

        if data.get('price') is not None:
            data['price'] = ctx.convert_decimal_number(
                data.get('price')
            )

        if data.get('takeProfitOnFill') is not None:
            data['takeProfitOnFill'] = \
                ctx.transaction.TakeProfitDetails.from_dict(
                    data['takeProfitOnFill'], ctx
                )

        if data.get('stopLossOnFill') is not None:
            data['stopLossOnFill'] = \
                ctx.transaction.StopLossDetails.from_dict(
                    data['stopLossOnFill'], ctx
                )

        if data.get('trailingStopLossOnFill') is not None:
            data['trailingStopLossOnFill'] = \
                ctx.transaction.TrailingStopLossDetails.from_dict(
                    data['trailingStopLossOnFill'], ctx
                )

        if data.get('tradeClientExtensions') is not None:
            data['tradeClientExtensions'] = \
                ctx.transaction.ClientExtensions.from_dict(
                    data['tradeClientExtensions'], ctx
                )


        return LimitOrder(**data)