Determine which class is contained (extended) in the requested class definition.
Examples
x <- classContains(class = "data.frame", package = "methods")
print(x)
#> [1] "list"
Determine which class is contained (extended) in the requested class definition.
x <- classContains(class = "data.frame", package = "methods")
print(x)
#> [1] "list"