hashie-test.rb

require "hashie/mash"

comments = Hashie::Mash.new
data = Hashie::Mash.new
from = Hashie::Mash.new

from.full_name="marc" 
from.id="393529"
from.profile_picture="http://images.ak.instagram.com/profiles/profile_393529_75sq_1350234816.jpg" 
from.username="marc"

data.created_time="134146266" 
data.from = from
data.id="22813482499" 
data.text="Opa, parece ate q uso o app para envelhecer o gustavo!kk"

comments.count=1
comments.data=[ data ]
puts comments.data[0].from.username

comments.data.each do |comment|
	puts comment.from.username
end

irb-output.txt

$ irb
irb(main):001:0> require "hashie/mash"
=> true
irb(main):002:0> 
irb(main):003:0* comments = Hashie::Mash.new
=> #<Hashie::Mash>
irb(main):004:0> data = Hashie::Mash.new
=> #<Hashie::Mash>
irb(main):005:0> from = Hashie::Mash.new
=> #<Hashie::Mash>
irb(main):006:0> 
irb(main):007:0* from.full_name="marc" 
=> "marc"
irb(main):008:0> from.id="393529"
=> "393529"
irb(main):009:0> from.profile_picture="http://images.ak.instagram.com/profiles/profile_393529_75sq_1350234816.jpg" 
=> "http://images.ak.instagram.com/profiles/profile_393529_75sq_1350234816.jpg"
irb(main):010:0> from.username="marc"
=> "marc"
irb(main):011:0> 
irb(main):012:0* data.created_time="134146266" 
=> "134146266"
irb(main):013:0> data.from = from
=> #<Hashie::Mash full_name="marc" id="393529" profile_picture="http://images.ak.instagram.com/profiles/profile_393529_75sq_1350234816.jpg" username="marc">
irb(main):014:0> data.id="22813482499" 
=> "22813482499"
irb(main):015:0> data.text="Opa, parece ate q uso o app para envelhecer o gustavo!kk"
=> "Opa, parece ate q uso o app para envelhecer o gustavo!kk"
irb(main):016:0> 
irb(main):017:0* comments.count=1
=> 1
irb(main):018:0> comments.data=[ data ]
=> [#<Hashie::Mash created_time="134146266" from=#<Hashie::Mash full_name="marc" id="393529" profile_picture="http://images.ak.instagram.com/profiles/profile_393529_75sq_1350234816.jpg" username="marc"> id="22813482499" text="Opa, parece ate q uso o app para envelhecer o gustavo!kk">]
irb(main):019:0> puts comments.data[0].from.username
marc
=> nil
irb(main):020:0> puts comments
#<Hashie::Mash count=1 data=[#<Hashie::Mash created_time="134146266" from=#<Hashie::Mash full_name="marc" id="393529" profile_picture="http://images.ak.instagram.com/profiles/profile_393529_75sq_1350234816.jpg" username="marc"> id="22813482499" text="Opa, parece ate q uso o app para envelhecer o gustavo!kk">]>
=> nil
irb(main):021:0> comments.data.each do |comment|
irb(main):022:1* puts comment.from.username
irb(main):023:1> end
marc
=> [#<Hashie::Mash created_time="134146266" from=#<Hashie::Mash full_name="marc" id="393529" profile_picture="http://images.ak.instagram.com/profiles/profile_393529_75sq_1350234816.jpg" username="marc"> id="22813482499" text="Opa, parece ate q uso o app para envelhecer o gustavo!kk">]
irb(main):024:0>