core/com.tealium.prism.core.api.data/JsonPathExtractable/extractLong extractLong open fun extractLong(jsonPath: JsonPath<TRoot>): Long?Extracts a nested Long according to the given jsonPath.If any path component is not found, either missing or unexpected type, then null will be returned.ReturnThe required Long if available; else nullParametersjsonPathThe JsonPath describing how to access the variable.