class SyntaxTree::BodyStmt

def copy(
  statements: nil,
  rescue_clause: nil,
  else_keyword: nil,
  else_clause: nil,
  ensure_clause: nil,
  location: nil
)
  node =
    BodyStmt.new(
      statements: statements || self.statements,
      rescue_clause: rescue_clause || self.rescue_clause,
      else_keyword: else_keyword || self.else_keyword,
      else_clause: else_clause || self.else_clause,
      ensure_clause: ensure_clause || self.ensure_clause,
      location: location || self.location
    )
  node.comments.concat(comments.map(&:copy))
  node
end