class Steep::Project::CompletionProvider

def items_for_atmark(position:)
  # @ ←
  shift_pos = position-1
  node, *parents = source.find_nodes(line: shift_pos.line, column: shift_pos.column)
  node ||= source.node
  return [] unless node
  context = typing.context_at(line: position.line, column: position.column)
  items = []
  instance_variable_items_for_context(context, prefix: "", position: position, items: items)
  items
end