# Structs
Bool stores a bool value and the information if the value has been set.
Float64 stores a float64 value and the information if the value has been set.
No description provided by the author
Int stores an int value and the information if the value has been set.
Int64 stores an int64 value and the information if the value has been set.
Interface stores an interface{} value and the information if the value has been set
TODO(simitt): follow up on https://github.com/elastic/apm-server/pull/4154#discussion_r484166721.
String stores a string value and the information if the value has been set.
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