Ruby Struct with kwargs

struct_kwargs.rb

# Ruby 2.5

# Create a struct the new way
$ Coordinate = Struct.new(:latitude, :longitude, keyword_init: true)
=> Coordinate(keyword_init: true)

# keyword arguments, can define any property
$ chicago = Coordinate.new(longitude: -87.67897)
=> #<struct Coordinate latitude=nil, longitude=-87.67897>

# once you use the keyword_init option for the struct, you must use keyword arguments
$ devmynd = Coordinate.new(41.912047, -87,67897)
ArgumentError (wrong number of arguments (given 2, expected 0))