Man pages matching name tsmimehdrfieldcopyvalues in section 3ts:

TSMimeHdrFieldCopyValues.3ts.en	debian 10 / trafficserver-dev
TSMimeHdrFieldCopyValues.3ts.en	debian 11 / trafficserver-dev
TSMimeHdrFieldCopyValues.3ts.en	debian 12 / trafficserver-dev