Try:
help?> methodswith
search: methodswith
methodswith(typ[, module or function][, showparents])
Return an array of methods with an argument of type typ.
The optional second argument restricts the search to a particular module or
function (the default is all modules, starting from
is there a function or keyboard shortcut to list all functions operating on
certain datatype?
for example, in a typical object-based approach, you can type the object in
REPL with a dot and it completes all methods operating on that object. in
Julia, we can only list all the behavior of a