kTree = {
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            "children": [
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                    "name": "public, 25 sec",
                    "children": [
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                            "name": "sdk, 25 sec",
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                                        {
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                                            "children": [
                                                {
                                                    "name": "unit, 25 sec",
                                                    "children": [
                                                        {
                                                            "name": "client, 25 sec",
                                                            "children": [
                                                                {
                                                                    "name": "oauth2_token_exchange, 25 sec",
                                                                    "children": [
                                                                        {
                                                                            "name": "TestTokenExchange.UpdatesTokenAndRetriesErrors, 25 sec",
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                                                                            "type": "testcase"
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}