// the type of c.
func imag(c ComplexType) FloatType
+// The clear built-in function clears maps and slices.
+// For maps, clear deletes all entries, resulting in an empty map.
+// For slices, clear sets all elements up to the length of the slice
+// to the zero value of the respective element type. If the argument
+// type is a type parameter, the type parameter's type set must
+// contain only map or slice types, and clear performs the operation
+// implied by the type argument.
+func clear[T ~[]Type | ~map[Type]Type1](t T)
+
// The close built-in function closes a channel, which must be either
// bidirectional or send-only. It should be executed only by the sender,
// never the receiver, and has the effect of shutting down the channel after