Attribute type that contains an IdeaType value. For example, if a com.google.ads.api.services.targetingideas.TargetingIdea represents a keyword idea, its IdeaTypeAttribute would contain a {@code KEYWORD} IdeaType.
Attribute type that contains a list of MonthlySearchVolume values. The list contains the past 12 MonthlySearchVolumes (excluding the current month). The first item is the data for the most recent month and the last item is the data for the oldest month.
[line 3529] Attributes encompass the core information about a particular
com.google.ads.api.services.targetingideas.TargetingIdea. Some attributes are for {@code KEYWORD} IdeaTypes, some are for {@code PLACEMENT} IdeaTypes, and some are for both. Ultimately, an Attribute instance simply wraps an actual value of interest. For example, KeywordAttribute wraps the keyword itself, while a BooleanAttribute simply wraps a boolean describing some information about the keyword idea.
