@type category_t() ::
  :tench
  | :goldfish
  | :great_white_shark
  | :tiger_shark
  | :hammerhead
  | :electric_ray
  | :stingray
  | :cock
  | :hen
  | :ostrich
  | :brambling
  | :goldfinch
  | :house_finch
  | :junco
  | :indigo_bunting
  | :robin
  | :bulbul
  | :jay
  | :magpie
  | :chickadee
  | :water_ouzel
  | :kite
  | :bald_eagle
  | :vulture
  | :great_grey_owl
  | :european_fire_salamander
  | :common_newt
  | :eft
  | :spotted_salamander
  | :axolotl
  | :bullfrog
  | :tree_frog
  | :tailed_frog
  | :loggerhead
  | :leatherback_turtle
  | :mud_turtle
  | :terrapin
  | :box_turtle
  | :banded_gecko
  | :common_iguana
  | :american_chameleon
  | :whiptail
  | :agama
  | :frilled_lizard
  | :alligator_lizard
  | :gila_monster
  | :green_lizard
  | :african_chameleon
  | :komodo_dragon
  | :african_crocodile
  | :american_alligator
  | :triceratops
  | :thunder_snake
  | :ringneck_snake
  | :hognose_snake
  | :green_snake
  | :king_snake
  | :garter_snake
  | :water_snake
  | :vine_snake
  | :night_snake
  | :boa_constrictor
  | :rock_python
  | :indian_cobra
  | :green_mamba
  | :sea_snake
  | :horned_viper
  | :diamondback
  | :sidewinder
  | :trilobite
  | :harvestman
  | :scorpion
  | :black_and_gold_garden_spider
  | :barn_spider
  | :garden_spider
  | :black_widow
  | :tarantula
  | :wolf_spider
  | :tick
  | :centipede
  | :black_grouse
  | :ptarmigan
  | :ruffed_grouse
  | :prairie_chicken
  | :peacock
  | :quail
  | :partridge
  | :african_grey
  | :macaw
  | :sulphur_crested_cockatoo
  | :lorikeet
  | :coucal
  | :bee_eater
  | :hornbill
  | :hummingbird
  | :jacamar
  | :toucan
  | :drake
  | :red_breasted_merganser
  | :goose
  | :black_swan
  | :tusker
  | :echidna
  | :platypus
  | :wallaby
  | :koala
  | :wombat
  | :jellyfish
  | :sea_anemone
  | :brain_coral
  | :flatworm
  | :nematode
  | :conch
  | :snail
  | :slug
  | :sea_slug
  | :chiton
  | :chambered_nautilus
  | :dungeness_crab
  | :rock_crab
  | :fiddler_crab
  | :king_crab
  | :american_lobster
  | :spiny_lobster
  | :crayfish
  | :hermit_crab
  | :isopod
  | :white_stork
  | :black_stork
  | :spoonbill
  | :flamingo
  | :little_blue_heron
  | :american_egret
  | :bittern
  | :crane_bird
  | :limpkin
  | :european_gallinule
  | :american_coot
  | :bustard
  | :ruddy_turnstone
  | :red_backed_sandpiper
  | :redshank
  | :dowitcher
  | :oystercatcher
  | :pelican
  | :king_penguin
  | :albatross
  | :grey_whale
  | :killer_whale
  | :dugong
  | :sea_lion
  | :chihuahua
  | :japanese_spaniel
  | :maltese_dog
  | :pekinese
  | :shih_tzu
  | :blenheim_spaniel
  | :papillon
  | :toy_terrier
  | :rhodesian_ridgeback
  | :afghan_hound
  | :basset
  | :beagle
  | :bloodhound
  | :bluetick
  | :black_and_tan_coonhound
  | :walker_hound
  | :english_foxhound
  | :redbone
  | :borzoi
  | :irish_wolfhound
  | :italian_greyhound
  | :whippet
  | :ibizan_hound
  | :norwegian_elkhound
  | :otterhound
  | :saluki
  | :scottish_deerhound
  | :weimaraner
  | :staffordshire_bullterrier
  | :american_staffordshire_terrier
  | :bedlington_terrier
  | :border_terrier
  | :kerry_blue_terrier
  | :irish_terrier
  | :norfolk_terrier
  | :norwich_terrier
  | :yorkshire_terrier
  | :wire_haired_fox_terrier
  | :lakeland_terrier
  | :sealyham_terrier
  | :airedale
  | :cairn
  | :australian_terrier
  | :dandie_dinmont
  | :boston_bull
  | :miniature_schnauzer
  | :giant_schnauzer
  | :standard_schnauzer
  | :scotch_terrier
  | :tibetan_terrier
  | :silky_terrier
  | :soft_coated_wheaten_terrier
  | :west_highland_white_terrier
  | :lhasa
  | :flat_coated_retriever
  | :curly_coated_retriever
  | :golden_retriever
  | :labrador_retriever
  | :chesapeake_bay_retriever
  | :german_short_haired_pointer
  | :vizsla
  | :english_setter
  | :irish_setter
  | :gordon_setter
  | :brittany_spaniel
  | :clumber
  | :english_springer
  | :welsh_springer_spaniel
  | :cocker_spaniel
  | :sussex_spaniel
  | :irish_water_spaniel
  | :kuvasz
  | :schipperke
  | :groenendael
  | :malinois
  | :briard
  | :kelpie
  | :komondor
  | :old_english_sheepdog
  | :shetland_sheepdog
  | :collie
  | :border_collie
  | :bouvier_des_flandres
  | :rottweiler
  | :german_shepherd
  | :doberman
  | :miniature_pinscher
  | :greater_swiss_mountain_dog
  | :bernese_mountain_dog
  | :appenzeller
  | :entlebucher
  | :boxer
  | :bull_mastiff
  | :tibetan_mastiff
  | :french_bulldog
  | :great_dane
  | :saint_bernard
  | :eskimo_dog
  | :malamute
  | :siberian_husky
  | :dalmatian
  | :affenpinscher
  | :basenji
  | :pug
  | :leonberg
  | :newfoundland
  | :great_pyrenees
  | :samoyed
  | :pomeranian
  | :chow
  | :keeshond
  | :brabancon_griffon
  | :pembroke
  | :cardigan
  | :toy_poodle
  | :miniature_poodle
  | :standard_poodle
  | :mexican_hairless
  | :timber_wolf
  | :white_wolf
  | :red_wolf
  | :coyote
  | :dingo
  | :dhole
  | :african_hunting_dog
  | :hyena
  | :red_fox
  | :kit_fox
  | :arctic_fox
  | :grey_fox
  | :tabby
  | :tiger_cat
  | :persian_cat
  | :siamese_cat
  | :egyptian_cat
  | :cougar
  | :lynx
  | :leopard
  | :snow_leopard
  | :jaguar
  | :lion
  | :tiger
  | :cheetah
  | :brown_bear
  | :american_black_bear
  | :ice_bear
  | :sloth_bear
  | :mongoose
  | :meerkat
  | :tiger_beetle
  | :ladybug
  | :ground_beetle
  | :long_horned_beetle
  | :leaf_beetle
  | :dung_beetle
  | :rhinoceros_beetle
  | :weevil
  | :fly
  | :bee
  | :ant
  | :grasshopper
  | :cricket
  | :walking_stick
  | :cockroach
  | :mantis
  | :cicada
  | :leafhopper
  | :lacewing
  | :dragonfly
  | :damselfly
  | :admiral
  | :ringlet
  | :monarch
  | :cabbage_butterfly
  | :sulphur_butterfly
  | :lycaenid
  | :starfish
  | :sea_urchin
  | :sea_cucumber
  | :wood_rabbit
  | :hare
  | :angora
  | :hamster
  | :porcupine
  | :fox_squirrel
  | :marmot
  | :beaver
  | :guinea_pig
  | :sorrel
  | :zebra
  | :hog
  | :wild_boar
  | :warthog
  | :hippopotamus
  | :ox
  | :water_buffalo
  | :bison
  | :ram
  | :bighorn
  | :ibex
  | :hartebeest
  | :impala
  | :gazelle
  | :arabian_camel
  | :llama
  | :weasel
  | :mink
  | :polecat
  | :black_footed_ferret
  | :otter
  | :skunk
  | :badger
  | :armadillo
  | :three_toed_sloth
  | :orangutan
  | :gorilla
  | :chimpanzee
  | :gibbon
  | :siamang
  | :guenon
  | :patas
  | :baboon
  | :macaque
  | :langur
  | :colobus
  | :proboscis_monkey
  | :marmoset
  | :capuchin
  | :howler_monkey
  | :titi
  | :spider_monkey
  | :squirrel_monkey
  | :madagascar_cat
  | :indri
  | :indian_elephant
  | :african_elephant
  | :lesser_panda
  | :giant_panda
  | :barracouta
  | :eel
  | :coho
  | :rock_beauty
  | :anemone_fish
  | :sturgeon
  | :gar
  | :lionfish
  | :puffer
  | :abacus
  | :abaya
  | :academic_gown
  | :accordion
  | :acoustic_guitar
  | :aircraft_carrier
  | :airliner
  | :airship
  | :altar
  | :ambulance
  | :amphibian
  | :analog_clock
  | :apiary
  | :apron
  | :ashcan
  | :assault_rifle
  | :backpack
  | :bakery
  | :balance_beam
  | :balloon
  | :ballpoint
  | :band_aid
  | :banjo
  | :bannister
  | :barbell
  | :barber_chair
  | :barbershop
  | :barn
  | :barometer
  | :barrel
  | :barrow
  | :baseball
  | :basketball
  | :bassinet
  | :bassoon
  | :bathing_cap
  | :bath_towel
  | :bathtub
  | :beach_wagon
  | :beacon
  | :beaker
  | :bearskin
  | :beer_bottle
  | :beer_glass
  | :bell_cote
  | :bib
  | :bicycle_built_for_two
  | :bikini
  | :binder
  | :binoculars
  | :birdhouse
  | :boathouse
  | :bobsled
  | :bolo_tie
  | :bonnet
  | :bookcase
  | :bookshop
  | :bottlecap
  | :bow
  | :bow_tie
  | :brass
  | :brassiere
  | :breakwater
  | :breastplate
  | :broom
  | :bucket
  | :buckle
  | :bulletproof_vest
  | :bullet_train
  | :butcher_shop
  | :cab
  | :caldron
  | :candle
  | :cannon
  | :canoe
  | :can_opener
  | :car_mirror
  | :carousel
  | :carpenter_s_kit
  | :carton
  | :car_wheel
  | :cash_machine
  | :cassette
  | :cassette_player
  | :castle
  | :catamaran
  | :cd_player
  | :cello
  | :cellular_telephone
  | :chain
  | :chainlink_fence
  | :chain_mail
  | :chain_saw
  | :chest
  | :chiffonier
  | :chime
  | :china_cabinet
  | :christmas_stocking
  | :church
  | :cinema
  | :cleaver
  | :cliff_dwelling
  | :cloak
  | :clog
  | :cocktail_shaker
  | :coffee_mug
  | :coffeepot
  | :coil
  | :combination_lock
  | :computer_keyboard
  | :confectionery
  | :container_ship
  | :convertible
  | :corkscrew
  | :cornet
  | :cowboy_boot
  | :cowboy_hat
  | :cradle
  | :crane
  | :crash_helmet
  | :crate
  | :crib
  | :crock_pot
  | :croquet_ball
  | :crutch
  | :cuirass
  | :dam
  | :desk
  | :desktop_computer
  | :dial_telephone
  | :diaper
  | :digital_clock
  | :digital_watch
  | :dining_table
  | :dishrag
  | :dishwasher
  | :disk_brake
  | :dock
  | :dogsled
  | :dome
  | :doormat
  | :drilling_platform
  | :drum
  | :drumstick
  | :dumbbell
  | :dutch_oven
  | :electric_fan
  | :electric_guitar
  | :electric_locomotive
  | :entertainment_center
  | :envelope
  | :espresso_maker
  | :face_powder
  | :feather_boa
  | :file
  | :fireboat
  | :fire_engine
  | :fire_screen
  | :flagpole
  | :flute
  | :folding_chair
  | :football_helmet
  | :forklift
  | :fountain
  | :fountain_pen
  | :four_poster
  | :freight_car
  | :french_horn
  | :frying_pan
  | :fur_coat
  | :garbage_truck
  | :gasmask
  | :gas_pump
  | :goblet
  | :go_kart
  | :golf_ball
  | :golfcart
  | :gondola
  | :gong
  | :gown
  | :grand_piano
  | :greenhouse
  | :grille
  | :grocery_store
  | :guillotine
  | :hair_slide
  | :hair_spray
  | :half_track
  | :hammer
  | :hamper
  | :hand_blower
  | :hand_held_computer
  | :handkerchief
  | :hard_disc
  | :harmonica
  | :harp
  | :harvester
  | :hatchet
  | :holster
  | :home_theater
  | :honeycomb
  | :hook
  | :hoopskirt
  | :horizontal_bar
  | :horse_cart
  | :hourglass
  | :ipod
  | :iron
  | :jack_o__lantern
  | :jean
  | :jeep
  | :jersey
  | :jigsaw_puzzle
  | :jinrikisha
  | :joystick
  | :kimono
  | :knee_pad
  | :knot
  | :lab_coat
  | :ladle
  | :lampshade
  | :laptop
  | :lawn_mower
  | :lens_cap
  | :letter_opener
  | :library
  | :lifeboat
  | :lighter
  | :limousine
  | :liner
  | :lipstick
  | :loafer
  | :lotion
  | :loudspeaker
  | :loupe
  | :lumbermill
  | :magnetic_compass
  | :mailbag
  | :mailbox
  | :maillot
  | :maillot_tank_suit
  | :manhole_cover
  | :maraca
  | :marimba
  | :mask
  | :matchstick
  | :maypole
  | :maze
  | :measuring_cup
  | :medicine_chest
  | :megalith
  | :microphone
  | :microwave
  | :military_uniform
  | :milk_can
  | :minibus
  | :miniskirt
  | :minivan
  | :missile
  | :mitten
  | :mixing_bowl
  | :mobile_home
  | :model_t
  | :modem
  | :monastery
  | :monitor
  | :moped
  | :mortar
  | :mortarboard
  | :mosque
  | :mosquito_net
  | :motor_scooter
  | :mountain_bike
  | :mountain_tent
  | :mouse
  | :mousetrap
  | :moving_van
  | :muzzle
  | :nail
  | :neck_brace
  | :necklace
  | :nipple
  | :notebook
  | :obelisk
  | :oboe
  | :ocarina
  | :odometer
  | :oil_filter
  | :organ
  | :oscilloscope
  | :overskirt
  | :oxcart
  | :oxygen_mask
  | :packet
  | :paddle
  | :paddlewheel
  | :padlock
  | :paintbrush
  | :pajama
  | :palace
  | :panpipe
  | :paper_towel
  | :parachute
  | :parallel_bars
  | :park_bench
  | :parking_meter
  | :passenger_car
  | :patio
  | :pay_phone
  | :pedestal
  | :pencil_box
  | :pencil_sharpener
  | :perfume
  | :petri_dish
  | :photocopier
  | :pick
  | :pickelhaube
  | :picket_fence
  | :pickup
  | :pier
  | :piggy_bank
  | :pill_bottle
  | :pillow
  | :ping_pong_ball
  | :pinwheel
  | :pirate
  | :pitcher
  | :plane
  | :planetarium
  | :plastic_bag
  | :plate_rack
  | :plow
  | :plunger
  | :polaroid_camera
  | :pole
  | :police_van
  | :poncho
  | :pool_table
  | :pop_bottle
  | :pot
  | :potter_s_wheel
  | :power_drill
  | :prayer_rug
  | :printer
  | :prison
  | :projectile
  | :projector
  | :puck
  | :punching_bag
  | :purse
  | :quill
  | :quilt
  | :racer
  | :racket
  | :radiator
  | :radio
  | :radio_telescope
  | :rain_barrel
  | :recreational_vehicle
  | :reel
  | :reflex_camera
  | :refrigerator
  | :remote_control
  | :restaurant
  | :revolver
  | :rifle
  | :rocking_chair
  | :rotisserie
  | :rubber_eraser
  | :rugby_ball
  | :rule
  | :running_shoe
  | :safe
  | :safety_pin
  | :saltshaker
  | :sandal
  | :sarong
  | :sax
  | :scabbard
  | :scale
  | :school_bus
  | :schooner
  | :scoreboard
  | :screen
  | :screw
  | :screwdriver
  | :seat_belt
  | :sewing_machine
  | :shield
  | :shoe_shop
  | :shoji
  | :shopping_basket
  | :shopping_cart
  | :shovel
  | :shower_cap
  | :shower_curtain
  | :ski
  | :ski_mask
  | :sleeping_bag
  | :slide_rule
  | :sliding_door
  | :slot
  | :snorkel
  | :snowmobile
  | :snowplow
  | :soap_dispenser
  | :soccer_ball
  | :sock
  | :solar_dish
  | :sombrero
  | :soup_bowl
  | :space_bar
  | :space_heater
  | :space_shuttle
  | :spatula
  | :speedboat
  | :spider_web
  | :spindle
  | :sports_car
  | :spotlight
  | :stage
  | :steam_locomotive
  | :steel_arch_bridge
  | :steel_drum
  | :stethoscope
  | :stole
  | :stone_wall
  | :stopwatch
  | :stove
  | :strainer
  | :streetcar
  | :stretcher
  | :studio_couch
  | :stupa
  | :submarine
  | :suit
  | :sundial
  | :sunglass
  | :sunglasses
  | :sunscreen
  | :suspension_bridge
  | :swab
  | :sweatshirt
  | :swimming_trunks
  | :swing
  | :switch
  | :syringe
  | :table_lamp
  | :tank
  | :tape_player
  | :teapot
  | :teddy
  | :television
  | :tennis_ball
  | :thatch
  | :theater_curtain
  | :thimble
  | :thresher
  | :throne
  | :tile_roof
  | :toaster
  | :tobacco_shop
  | :toilet_seat
  | :torch
  | :totem_pole
  | :tow_truck
  | :toyshop
  | :tractor
  | :trailer_truck
  | :tray
  | :trench_coat
  | :tricycle
  | :trimaran
  | :tripod
  | :triumphal_arch
  | :trolleybus
  | :trombone
  | :tub
  | :turnstile
  | :typewriter_keyboard
  | :umbrella
  | :unicycle
  | :upright
  | :vacuum
  | :vase
  | :vault
  | :velvet
  | :vending_machine
  | :vestment
  | :viaduct
  | :violin
  | :volleyball
  | :waffle_iron
  | :wall_clock
  | :wallet
  | :wardrobe
  | :warplane
  | :washbasin
  | :washer
  | :water_bottle
  | :water_jug
  | :water_tower
  | :whiskey_jug
  | :whistle
  | :wig
  | :window_screen
  | :window_shade
  | :windsor_tie
  | :wine_bottle
  | :wing
  | :wok
  | :wooden_spoon
  | :wool
  | :worm_fence
  | :wreck
  | :yawl
  | :yurt
  | :web_site
  | :comic_book
  | :crossword_puzzle
  | :street_sign
  | :traffic_light
  | :book_jacket
  | :menu
  | :plate
  | :guacamole
  | :consomme
  | :hot_pot
  | :trifle
  | :ice_cream
  | :ice_lolly
  | :french_loaf
  | :bagel
  | :pretzel
  | :cheeseburger
  | :hotdog
  | :mashed_potato
  | :head_cabbage
  | :broccoli
  | :cauliflower
  | :zucchini
  | :spaghetti_squash
  | :acorn_squash
  | :butternut_squash
  | :cucumber
  | :artichoke
  | :bell_pepper
  | :cardoon
  | :mushroom
  | :granny_smith
  | :strawberry
  | :orange
  | :lemon
  | :fig
  | :pineapple
  | :banana
  | :jackfruit
  | :custard_apple
  | :pomegranate
  | :hay
  | :carbonara
  | :chocolate_sauce
  | :dough
  | :meat_loaf
  | :pizza
  | :potpie
  | :burrito
  | :red_wine
  | :espresso
  | :cup
  | :eggnog
  | :alp
  | :bubble
  | :cliff
  | :coral_reef
  | :geyser
  | :lakeside
  | :promontory
  | :sandbar
  | :seashore
  | :valley
  | :volcano
  | :ballplayer
  | :groom
  | :scuba_diver
  | :rapeseed
  | :daisy
  | :yellow_lady_s_slipper
  | :corn
  | :acorn
  | :hip
  | :buckeye
  | :coral_fungus
  | :agaric
  | :gyromitra
  | :stinkhorn
  | :earthstar
  | :hen_of_the_woods
  | :bolete
  | :ear
  | :toilet_tissue

@type output_t() :: %{required(category_t()) => number()}

@opaque t()