PRAGMA RESTRICT_REFERENCES 
( { method_name | DEFAULT } ,
  { RNDS | WNDS | RNPS | WNPS | TRUST } 
  [, { RNDS | WNDS | RNPS | WNPS | TRUST }]... 
)

For information on the symbols and conventions of Backus-Naur Form (BNF) syntax, see Appendix A.