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\u003eVersion 1.69.0 is the latest available version of the Google.Apis.Testing documentation.\u003c/p\u003e\n"],["\u003cp\u003eThe webpage provides access to the documentation for various versions of Google.Apis.Testing, including 1.68.0, 1.60.0, 1.59.0, 1.55.0, and 1.50.0.\u003c/p\u003e\n"],["\u003cp\u003eThe content explains the use of the \u003ccode\u003eVisibleForTestOnly\u003c/code\u003e marker attribute to increase the visibility of methods, classes, or properties specifically for testing.\u003c/p\u003e\n"],["\u003cp\u003eTo implement this, members should be marked as internal, and the testing assembly should be added as a friend using the \u003ccode\u003eInternalsVisibleTo\u003c/code\u003e attribute.\u003c/p\u003e\n"]]],[],null,[]]