signed integer UInt [...] unsigned integer Int32 = [...] signed integer UInt

to convert the value to an integer for the choice [...] of the message. In other words

integer or DateTime , [...] of integer or DateTime , [...] , in other words, Selection

getting one integer [...] . In other words: For Objects [...] . In other words: For Objects

by the compiler. In other words [...] with 2-4 integers [...] sequence of integers