class YARD::ActiveSupport::Concern::ClassMethodsHandler

def process

(class or module).
Process any found `class_methods` block within a "namespace" scope 
def process
  # `statement.last.last` refers to the statements within the block
  # given to `class_methods`. YARD will parse those and attach any
  # generated documentation to the current namespace at the class
  # level (unless overridden with a @!scope directive)
  parse_block(statement.last.last, namespace: namespace, scope: :class)
end