def options(opt)
opt.on :ex, "Show the context of the last exception", :optional_argument => true, :as => Integer
opt.on :i, :in, "Show one or more entries from Pry's expression history", :optional_argument => true, :as => Range, :default => -5..-1
opt.on :s, :start, "Starting line (defaults to the first line)", :optional_argument => true, :as => Integer
opt.on :e, :end, "Ending line (defaults to the last line)", :optional_argument => true, :as => Integer
opt.on :l, :'line-numbers', "Show line numbers"
opt.on :t, :type, "The file type for syntax highlighting (e.g., 'ruby' or 'python')", :argument => true, :as => Symbol
end