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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 validate(self, postdata, user = None):
 """Validate posted data against the inputtemplate"""

        clam.common.util.printdebug("Validating inputtemplate " + self.id + "...")
        errors, parameters, _  = processparameters(postdata, self.parameters, user)
        return errors, parameters