Thanks to Pete and Peter for the ideas, but there are a lot of money metrics that do not include the word 'micros' in the names or the descriptions. As a really obvious example:
average_cpc : "The total cost of all clicks divided by the total number of clicks received."
The discovery document also provides no additional clues, just echoing the description.
I also tried 'cost', but there are still the odd exceptions like benchmark_average_max_cpc - "An indication of how other advertisers are bidding on similar products." Obscure, I know, but it exists.
I realize there are only 120 metrics, but things change over time (API v8 already?) and it would be nice to have an automated method to determine if a number is a micro or not...
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