human
Solve the following python programming problem given the following code:
def build_put_params(self, params, name, value = None, timestamp = None, unit = None, dimensions = None, statistics = None) : 
    args = (name, value, unit, dimensions, statistics) 
    length = max (map ((lambda a : (len (a) if isinstance (a, list) else 1)), args)) 
    def aslist(a) : 
        if isinstance (a, list) : 
            if (len (a) != length) : 
                raise Exception (('Must specify equal number of elements.
expected %d.' % length)) 
return a 
return ([a] * length) 
for (index, (n, v, u, d, s)) in enumerate (zip (* map (aslist, args))) : 
        metric_data = { 
            'MetricName' : n, 
} 
        if timestamp : 
            metric_data ['Timestamp'] = timestamp.isoformat () 
if unit : 
            metric_data ['Unit'] = u 
if dimensions : 
            self.build_dimension_param (d, metric_data) 
if statistics : 
            metric_data ['StatisticValues.Maximum'] = s ['maximum'] 
            metric_data ['StatisticValues.Minimum'] = s ['minimum'] 
            metric_data ['StatisticValues.SampleCount'] = s ['samplecount'] 
            metric_data ['StatisticValues.Sum'] = s ['sum'] 
            if (value != None) : 
                msg = 'You supplied a value and statistics for a metric.' 
                msg += 'Posting statistics and not value.' 
                boto.log.warn (msg) 
else : 
            if (value != None) : 
                metric_data ['Value'] = v 
else : 
                raise Exception ('Must specify a value or statistics to put.') 
for (key, value) in metric_data.iteritems () : 
            params [('MetricData.member.%d.%s' % ((args + 1), key))] = value 

    
    

    Fix the buggy line: params [('MetricData.member.%d.%s' % ((args + 1), key))] = value
assistant
#Here is Python program to fix the buggy line: params [('MetricData.

params [('MetricData.member.%d.%s' % ((index + 1), key))] = value