[[["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 2025-08-07 UTC."],[],[],null,["# Interface protos.google.protobuf.DescriptorProto.IExtensionRange (3.2.0)\n\nVersion latestkeyboard_arrow_down\n\n- [3.2.0 (latest)](/nodejs/docs/reference/optimization/latest/optimization/protos.google.protobuf.descriptorproto.iextensionrange)\n- [2.2.2](/nodejs/docs/reference/optimization/2.2.2/optimization/protos.google.protobuf.descriptorproto.iextensionrange)\n- [2.1.1](/nodejs/docs/reference/optimization/2.1.1/optimization/protos.google.protobuf.descriptorproto.iextensionrange) \nProperties of an ExtensionRange.\n\nPackage\n-------\n\n[@google-cloud/optimization](../overview.html)\n\nProperties\n----------\n\n### end\n\n end?: (number|null);\n\nExtensionRange end\n\n### options\n\n options?: (google.protobuf.IExtensionRangeOptions|null);\n\nExtensionRange options\n\n### start\n\n start?: (number|null);\n\nExtensionRange start"]]