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#<Class:0x007fc6674c7810>#flash
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ArticlesController#flash
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ActionDispatch::Request#flash
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ActionDispatch::Request#flash_hash
$GemPath0/gems/actionpack-5.0.2/lib/action_dispatch/middleware/flash.rb:55
ActionDispatch::Request#get_header
$GemPath0/gems/rack-2.0.1/lib/rack/request.rb:50
ActionDispatch::Request#session
$GemPath0/gems/rack-2.0.1/lib/rack/request.rb:144
ActionDispatch::Request#fetch_header
$GemPath0/gems/rack-2.0.1/lib/rack/request.rb:56
Hash#fetch
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ActionDispatch::Request::Session#[]
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ActionDispatch::Request::Session#load_for_read!
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ActionDispatch::Request::Session#loaded?
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String#to_s
$GemPath0/gems/actionpack-5.0.2/lib/action_dispatch/request/session.rb:91
ActionDispatch::Flash::FlashHash.from_session_value
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Module#===
$GemPath0/gems/actionpack-5.0.2/lib/action_dispatch/middleware/flash.rb:114
Module#===
$GemPath0/gems/actionpack-5.0.2/lib/action_dispatch/middleware/flash.rb:120
Class#new
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ActionDispatch::Flash::FlashHash#initialize
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ActionDispatch::Flash::FlashHash#stringify_array
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Array#map
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Class#new
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Set#initialize
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Class#new
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Hash#initialize
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Kernel#nil?
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Set#merge
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Kernel#class
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Kernel#instance_of?
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Set#do_with_enum
/home/z/.rbenv/versions/2.3.3/lib/ruby/2.3.0/set.rb:94
Kernel#respond_to?
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Enumerable#each_entry
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Array#each
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Hash#stringify_keys
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Hash#transform_keys
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Kernel#block_given?
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Hash#each_key
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ActionDispatch::Request#flash=
$GemPath0/gems/actionpack-5.0.2/lib/action_dispatch/middleware/flash.rb:51
ActionDispatch::Request#set_header
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ActionDispatch::Flash::FlashHash#[]
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Symbol#to_s
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