Service cache_contexts_manager detail

Computed Definition =>

array:4 [
  "class" => "Drupal\Core\Cache\Context\CacheContextsManager"
  "arguments" => {#1571
    +"type": "collection"
    +"value": array:2 [
      0 => {#1569
        +"type": "service"
        +"id": "service_container"
        +"invalidBehavior": 1
      }
      1 => {#1568
        +"type": "parameter"
        +"name": "cache_contexts"
      }
    ]
  }
  "arguments_count" => 2
  "alias" => "Drupal\Core\Cache\Context\CacheContextsManager"
]

Instance =>

Drupal\Core\Cache\Context\CacheContextsManager {#49
  #container: Drupal\Core\DependencyInjection\Container {#40 …7}
  #contexts: array:27 [
    0 => "cookies"
    1 => "headers"
    2 => "ip"
    3 => "languages"
    4 => "layout_builder_is_active"
    5 => "protocol_version"
    6 => "request_format"
    7 => "route"
    8 => "route.menu_active_trails"
    9 => "route.name"
    10 => "route.name.is_layout_builder_ui"
    11 => "session"
    12 => "session.exists"
    13 => "theme"
    14 => "timezone"
    15 => "url"
    16 => "url.path"
    17 => "url.path.is_front"
    18 => "url.path.parent"
    19 => "url.query_args"
    20 => "url.query_args.pagers"
    21 => "url.site"
    22 => "user"
    23 => "user.is_super_user"
    24 => "user.node_grants"
    25 => "user.permissions"
    26 => "user.roles"
  ]
  #validContextTokens: array:28 [
    "cookies" => 0
    "headers" => 1
    "ip" => 2
    "languages" => 3
    "layout_builder_is_active" => 4
    "protocol_version" => 5
    "request_format" => 6
    "route" => 7
    "route.menu_active_trails" => 8
    "route.name" => 9
    "route.name.is_layout_builder_ui" => 10
    "session" => 11
    "session.exists" => 12
    "theme" => 13
    "timezone" => 14
    "url" => 15
    "url.path" => 16
    "url.path.is_front" => 17
    "url.path.parent" => 18
    "url.query_args" => 19
    "url.query_args.pagers" => 20
    "url.site" => 21
    "user" => 22
    "user.is_super_user" => 23
    "user.node_grants" => 24
    "user.permissions" => 25
    "user.roles" => 26
    "languages:language_interface" => true
  ]
}