Gem::Dependency

    # File lib/bundler/resolver.rb, line 16
16:     def required_by
17:       @required_by ||= []
18:     end

    # File lib/bundler/shared_helpers.rb, line 8
 8:       def requirement
 9:         version_requirements
10:       end

     # File lib/bundler/rubygems_ext.rb, line 112
112:     def to_lock
113:       out = "  #{name}"
114:       unless requirement == Gem::Requirement.default
115:         out << " (#{requirement.to_s})"
116:       end
117:       out
118:     end

     # File lib/bundler/rubygems_ext.rb, line 108
108:     def to_yaml_properties
109:       instance_variables.reject { |p| ["@source", "@groups"].include?(p.to_s) }
110:     end