RDCIST-3853: Add support to private gateway #2

Job	Run time
checks / pre-commit	36s
checks / test (3.10, lowest-direct, windows-latest)	2m 2s
checks / readme-snippets	11s
checks / test (3.12, lowest-direct, ubuntu-latest)	44s
checks / test (3.10, lowest-direct, ubuntu-latest)	38s
checks / test (3.10, highest, windows-latest)	2m 2s
checks / test (3.11, highest, ubuntu-latest)	37s
checks / test (3.10, highest, ubuntu-latest)	38s
checks / test (3.12, highest, windows-latest)	2m 54s
checks / test (3.11, highest, windows-latest)	2m 36s
checks / test (3.11, lowest-direct, windows-latest)	2m 5s
checks / test (3.11, lowest-direct, ubuntu-latest)	38s
checks / test (3.12, highest, ubuntu-latest)	46s
checks / test (3.12, lowest-direct, windows-latest)	3m 33s
checks / test (3.13, lowest-direct, windows-latest)	2m 5s
checks / test (3.13, highest, windows-latest)	2m 38s
checks / test (3.13, highest, ubuntu-latest)	38s
checks / test (3.13, lowest-direct, ubuntu-latest)	37s
	25m 58s

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