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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def _load_instr(ctx, name: str, mount: str, *args, **kwargs) -> InstrumentContext: """ Build an instrument in a backwards-compatible way. You should almost certainly not be calling this function from a protocol; if you want to create a pipette on a lower level, use :py:meth:`.ProtocolContext.load_instrument` directly, and if you want to create an instrument easily use one of the partials below. """

        return ctx.load_instrument(name, Mount[mount.upper()])