Stores your VirusTotal API key in an environment variable for use by other package functions. Get your API key from https://www.virustotal.com/.
Details
The canonical environment variable is VIRUSTOTAL_API_KEY; the
historical VirustotalToken is also set for compatibility with code
that reads it directly. Setting either variable before loading the package
works without calling this function at all.
See also
Other authentication:
has_vt_key(),
vt_key()
Examples
if (FALSE) { # \dontrun{
# Set your API key
set_key('your_64_character_api_key_here')
# Verify it's set
Sys.getenv("VIRUSTOTAL_API_KEY")
} # }