Wrapper around Sys.info() and get_r_version that provides
a consolidated list of variables used for logging contexts.
Metrics
System Context
- "sysname" : The operating system name. 
- "release" : The OS release. 
- "version" : The OS version. 
- "nodename" : A name by which the machine is known on the network (if any). 
- "machine" : A concise description of the hardware, often the CPU type. 
- "login" : The user's login name, or "unknown" if it cannot be ascertained. 
- "user" : The name of the real user ID, or "unknown" if it cannot be ascertained. 
- "r-ver" : R Version in (major).(minor) format. 
See also
Other Context: 
class_scope(),
exec_context(),
format_fn_call(),
get_call_stack(),
get_r_version(),
get_system_info()