Import and standardise a marker whitelist supplied as an object or a tab-separated file.
Value
A distinct whitelist with character fields cleaned for genomic
matching, or NULL when no whitelist is supplied.
Dependencies
Required package dependencies are declared in DESCRIPTION and are
installed with genometranslator. Any additional dependency needed only
for this format or option is identified in this help page. Use
genometranslator_dependencies() to inspect the availability of core
packages, optional packages, and external executables.
