def METHOD_NAME(self, metric_name,instance):
    if metric_name == 'proc.psinfo.vsize' and instance == 1:
        return 120084
    if metric_name == 'proc.psinfo.rss' and instance == 1:
        return 6272
    if metric_name == 'proc.psinfo.minflt' and instance == 1:
        return 14509
    if metric_name == 'proc.psinfo.maj_flt' and instance == 1:
        return 54
    if metric_name == 'mem.physmem':
        return 3794764
    if metric_name == 'proc.psinfo.cmd' and instance == 1:
        return "test"
    if metric_name == 'proc.psinfo.processor' and instance == 1:
        return 0
    if metric_name == 'proc.id.uid' and instance == 1:
        return 1
    if metric_name == 'proc.psinfo.pid' and instance == 1:
        return 1
    if metric_name == 'proc.psinfo.vsize' and instance == 2:
        return 120084
    if metric_name == 'proc.psinfo.rss' and instance == 2:
        return 6272
    if metric_name == 'proc.psinfo.minflt' and instance == 2:
        return 14509
    if metric_name == 'proc.psinfo.maj_flt' and instance == 2:
        return 54
    return None