Placing Ruby `require` outside of a module definition?

Question

In Ruby, is it ok to place an operator requireoutside the module definition? Will module require'd still be available inside classes nested in the module?

For example, this:

require 'baz'
module Foo
  class Bar
    # some code using Baz
  end
end 

same as this?

module Foo
  require 'baz'
  class Bar
    # some code using Baz
  end
end 

and just like that?

module Foo
  class Bar
    require 'baz'
    # some code using Baz
  end
end 

Answer 1

require . , . , , , , , , ..

if some_boolean
  require 'file'
end

Answer 2

require . , . , , , require.