@staticmethod<EOL><INDENT>def find_safe(ns_qualified_sym: sym.Symbol) -> "<STR_LIT>":<DEDENT>
v = Var.find(ns_qualified_sym)<EOL>if v is None:<EOL><INDENT>raise RuntimeException(<EOL>f"<STR_LIT>"<EOL>)<EOL><DEDENT>return v<EOL>
Return the Var currently bound to the name in the namespace specified
        by `ns_qualified_sym`. If no Var is bound to that name, raise an exception.

        This is a utility method to return useful debugging information when code
        refers to an invalid symbol at runtime.