Depending on constructor, we construct the object as follows:
"numeric_version" : We use numeric_version()
"next" : Use the constructor for the next supported class. Call .class2()
on the object to see in which order the methods will be tried. This will usually
be equivalent to "list"
"list" : We define as a list and repair attributes
opts_numeric_version(constructor = c("numeric_version", "next", "list"), ...)An object of class <constructive_options/constructive_options_numeric_version>
String. Name of the function used to construct the object.
Additional options used by user defined constructors through the opts object