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| method-types |
<-types
slot describes the type-checking performed when the method is invoked.
it is a vector of type
objects. The elements of the vector denote the argument types for the
corresponding argument positions. When a C-function is invoked the
arguments are the receiver, followed by the arguments that activated the
method. When a code
object is invoked, @receiver
is bound to the receiver, @arg1
is bound to the first argument, @arg2
to the second, etc.
See also class type
and send_method->send.