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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 is_population_germline(rec):
 """Identify a germline calls based on annoations with ExAC or other population databases. """

    min_count = 50
    for k in population_keys:
        if k in rec.info:
            val = rec.info.get(k)
            if "," in val:
                val = val.split(",")[0]
            if isinstance(val, (list, tuple)):
                val = max(val)
            if int(val) > min_count:
                return True
    return False