def blocks_name_declaration(mixin_node)
      block_name_declaration(DEFAULT_BLOCK_NAME)

      mixin_node.params.select { |n| n.type == :mixin_block_param }.each do |param|
        block_name_declaration(param.value)
      end
    end
def blocks_name_declaration(mixin_node)
      block_name_declaration(DEFAULT_BLOCK_NAME)

      mixin_node.params.select { |n| n.type == :mixin_block_param }.each do |param|
        block_name_declaration(param.value)
      end
    end
@param [MixinDeclarationNode] mixin_node

 @return [nil]