docs(samples): add auto-generated samples for Node with api short name in region tag (#1484)
docs(samples): add auto-generated samples for Node with api short name in region tag (#1484)

- [ ] Regenerate this pull request now.

PiperOrigin-RevId: 399287285

Source-Link: https://github.com/googleapis/googleapis/commit/15759865d1c54e3d46429010f7e472fe6c3d3715

Source-Link: https://github.com/googleapis/googleapis-gen/commit/b27fff623a5d8d586b703b5e4919856abe7c2eb3
Copy-Tag: eyJwIjoiLmdpdGh1Yi8uT3dsQm90LnlhbWwiLCJoIjoiYjI3ZmZmNjIzYTVkOGQ1ODZiNzAzYjVlNDkxOTg1NmFiZTdjMmViMyJ9
googleapis/nodejs-spanner,googleapis/nodejs-spanner,googleapis/nodejs-spanner,googleapis/nodejs-spanner