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"]],[["Missing the information I need","missingTheInformationINeed","thumb-down"],["Too complicated / too many steps","tooComplicatedTooManySteps","thumb-down"],["Out of date","outOfDate","thumb-down"],["Samples / code issue","samplesCodeIssue","thumb-down"],["Other","otherDown","thumb-down"]],["Last updated 2025-08-07 UTC."],[[["\u003cp\u003eVersion 1.69.0 is the latest release within the provided documentation, followed by previous versions including 1.68.0, 1.60.0, 1.59.0, 1.55.0, and 1.50.0.\u003c/p\u003e\n"],["\u003cp\u003e\u003ccode\u003eVisibleForTestOnly\u003c/code\u003e is a marker attribute that is used to make a Method, Class, or Property more accessible specifically for testing purposes.\u003c/p\u003e\n"],["\u003cp\u003eThe \u003ccode\u003eVisibleForTestOnly\u003c/code\u003e attribute can be used in conjunction with the \u003ccode\u003eInternalsVisibleTo\u003c/code\u003e attribute to make internal members visible to a designated testing assembly, which is added to the assembly in the following format: \u003ccode\u003e[assembly: InternalsVisibleTo("Full.Name.Of.Testing.Assembly")]\u003c/code\u003e.\u003c/p\u003e\n"],["\u003cp\u003eThe namespace for \u003ccode\u003eVisibleForTestOnly\u003c/code\u003e is \u003ccode\u003eGoogle.Apis.Testing\u003c/code\u003e and it is found in the \u003ccode\u003eGoogle.Apis.Core.dll\u003c/code\u003e assembly.\u003c/p\u003e\n"],["\u003cp\u003eThe \u003ccode\u003eUtilities.ThrowIfNull<T>(T, String)\u003c/code\u003e extension method is available in this release.\u003c/p\u003e\n"]]],[],null,[]]
