walk_xobject_form (PDF::Reader::Content)

    # File lib/pdf/reader/content.rb, line 322
        def walk_xobject_form(label)
          xobjects = current_resources[:XObject] || {}
          xobject  = @xref.object(xobjects[label])

          if xobject && xobject.hash[:Subtype] == :Form
            callback(:begin_form_xobject)
            resources = @xref.object(xobject.hash[:Resources])
            walk_resources(resources) if resources
            content_stream(xobject.to_s)
            callback(:end_form_xobject)
          end
        end