Marker Attribute to indicate a Method/Class/Property has been made more visible for purpose of testing.
Mark the member as internal and make the testing assembly a friend using
[[["Easy to understand","easyToUnderstand","thumb-up"],["Solved my problem","solvedMyProblem","thumb-up"],["Other","otherUp","thumb-up"]],[["Hard to understand","hardToUnderstand","thumb-down"],["Incorrect information or sample code","incorrectInformationOrSampleCode","thumb-down"],["Missing the information/samples I need","missingTheInformationSamplesINeed","thumb-down"],["Other","otherDown","thumb-down"]],["Last updated 2025-09-04 UTC."],[[["\u003cp\u003eThe latest version of the Google.Apis package available is 1.69.0.\u003c/p\u003e\n"],["\u003cp\u003eVersion 1.55.0 of the Google.Apis package includes the \u003ccode\u003eVisibleForTestOnly\u003c/code\u003e marker attribute.\u003c/p\u003e\n"],["\u003cp\u003eThe \u003ccode\u003eVisibleForTestOnly\u003c/code\u003e attribute is used to indicate that a Method/Class/Property has been made more visible for testing purposes.\u003c/p\u003e\n"],["\u003cp\u003eTo use the \u003ccode\u003eVisibleForTestOnly\u003c/code\u003e attribute, members should be marked as internal and the testing assembly should be set as a friend.\u003c/p\u003e\n"]]],[],null,[]]