Checks valid methods and issues a friendlier error message in case the method is undefined for the supplied object type.

friendly_class_undefined_message(object_class, function_name)

Arguments

object_class

character describing the object class

function_name

character which is the function name

Examples

# as.tokens.default <- function(x, concatenator = "", ...) { # stop(quanteda:::friendly_class_undefined_message(class(x), "as.tokens")) # }