@spiceErrorCheck<EOL>def return_c():
return bool(libspice.return_c())<EOL>
True if SPICE routines should return immediately upon entry.

http://naif.jpl.nasa.gov/pub/naif/toolkit_docs/C/cspice/return_c.html

:return: True if SPICE routines should return immediately upon entry.
:rtype: bool