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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_dates(schema):
 """Return list of datetime fields for given schema."""

    dates = [config.LAST_UPDATED, config.DATE_CREATED]
    for field, field_schema in schema.items():
        if field_schema['type'] == 'datetime':
            dates.append(field)
    return dates