Iterating over a hash of hash of hashes

Is there a more “rubyesque” idiom for iterating of a multi-dimensional
hash other than the following:

workq_dev.get_all_zapps.each do |k,v|
print "#{k} ==> "
v.each do |k,v|
puts "#{k} ==> "
puts v.class
v.each { |k,v| puts “#{k} ==> #{v}” }

thanks in advance!

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