module RuboCop::Cop::RSpec::AggregateExamples::NodeMatchers

def contains_heredoc?(node)

especially when interleaved with parenthesis or curly braces.
Searches for HEREDOC in examples. It can be tricky to aggregate, 
def contains_heredoc?(node)
  node.each_descendant(:str, :xstr, :dstr).any?(&:heredoc?)
end

def example_method?(method_name) 

def example_method?(method_name)
  %i[it specify example scenario].include?(method_name)
end