How do I invoke a proc given the procedure name as a string?

Let´s assume we have the following procedure:

proc helloWorld() =
    echo "Hallo World"

Now, I want to invoke the method helloWorld given the procedure name as a string.

let procName = "helloWorld"
invoke(procName)

Is this possible in Nim? In contrast to the Java Reflection API, can this be done at compile time ?