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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 _get(pseudodict, key, single=True):
 """Helper method for getting values from "multi-dict"s"""

    matches = [item[1] for item in pseudodict if item[0] == key]
    if single:
        return matches[0]
    else:
        return matches