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