Man pages matching name tspi_context_getregisteredkeysbyuuid2 in section 3:

Tspi_Context_GetRegisteredKeysByUUID2.3.en	debian 10 / libtspi-dev
Tspi_Context_GetRegisteredKeysByUUID2.3.en	debian 11 / libtspi-dev
Tspi_Context_GetRegisteredKeysByUUID2.3.en	debian 12 / libtspi-dev
Tspi_Context_GetRegisteredKeysByUUID2.3.en	debian 13 / libtspi-dev