class RuboCop::Cop::RSpec::RepeatedDescription

def repeated_descriptions(node)

Select examples in the current scope with repeated description strings
def repeated_descriptions(node)
  grouped_examples =
    RuboCop::RSpec::ExampleGroup.new(node)
      .examples
      .group_by { |example| example_signature(example) }
  grouped_examples
    .select { |signatures, group| signatures.any? && group.size > 1 }
    .values
    .flatten
    .map(&:definition)
end