@spiceErrorCheck<EOL>def bltfrm(frmcls, outCell=None):
frmcls = ctypes.c_int(frmcls)<EOL>if not outCell:<EOL><INDENT>outCell = stypes.SPICEINT_CELL(<NUM_LIT:1000>)<EOL><DEDENT>libspice.bltfrm_c(frmcls, outCell)<EOL>return outCell<EOL>
Return a SPICE set containing the frame IDs of all built-in frames
of a specified class.

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

:param frmcls: Frame class.
:type frmcls: int
:param outCell: Optional SpiceInt Cell that is returned
:type outCell: spiceypy.utils.support_types.SpiceCell
:return: Set of ID codes of frames of the specified class.
:rtype: spiceypy.utils.support_types.SpiceCell