ssh: add None function

[tg123]

fixes #62657

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Message from Gopher Robot:

Patch Set 1:

(1 comment)

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Message from Boshi Lian:

Patch Set 1:

(1 comment)

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Message from Boshi Lian:

Patch Set 1:

(1 comment)

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Message from Gopher Robot:

Patch Set 1:

(1 comment)

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Message from Boshi Lian:

Patch Set 1:

(1 comment)

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[gopherbot]

Message from Boshi Lian:

Patch Set 1:

(1 comment)

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