How can I pass named arguments to a Rake task?

Is there a way to pass named arguments to a Rake task without using environment variables?

I am aware that Rake tasks can accept arguments in two formats:

Environment Variables

$ rake my_task foo=bar

This creates an environment variable with the name foo and the value bar that can be accessed in the Rake task my_task by ENV['foo'].

Rake Task Arguments

$ rake my_task['foo','bar']

This passes the values foo and bar to the first two task arguments (if they are defined). If my_task were defined as:

task :my_task, :argument_1, :argument_2

then argument_1 would have the value foo and argument_2 would have the value bar.