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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 count_values(tokens):
 """Identify the number of values ahead of the current token."""

    ntoks = 0
    for tok in tokens:
        if tok in ('=', '/', '$', '&'):
            if ntoks > 0 and tok == '=':
                ntoks -= 1
            break
        elif tok in whitespace + ',':
            continue
        else:
            ntoks += 1

    return ntoks