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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 setInstrument(self, instrument, override_analyses=False):
 """ Sets the specified instrument to the Analysis from the Worksheet. Only sets the instrument if the Analysis allows it, according to its Analysis Service and Method. If an analysis has already assigned an instrument, it won't be overriden. The Analyses that don't allow the instrument specified will not be modified. Returns the number of analyses affected """

        analyses = [an for an in self.getAnalyses()
                    if (not an.getInstrument() or override_analyses) and
                    an.isInstrumentAllowed(instrument)]
        total = 0
        for an in analyses:
            # An analysis can be done using differents Methods.
            # Un method can be supported by more than one Instrument,
            # but not all instruments support one method.
            # We must force to set the instrument's method too. Otherwise,
            # the WS manage results view will display the an's default
            # method and its instruments displaying, only the instruments
            # for the default method in the picklist.
            instr_methods = instrument.getMethods()
            meth = instr_methods[0] if instr_methods else None
            if meth and an.isMethodAllowed(meth):
                if an.getMethod() not in instr_methods:
                    an.setMethod(meth)

            an.setInstrument(instrument)
            total += 1

        self.getField('Instrument').set(self, instrument)
        return total