module RuboCop::Cop::Style::ConditionalAssignmentHelper

def lhs_for_casgn(node)
  namespace = node.children[0]
  if namespace.nil? || namespace.cbase_type?
    "#{namespace&.source}#{node.children[1]} = "
  else
    "#{namespace.source}::#{node.children[1]} = "
  end
end