"que de" meaning in French

{
  "head_templates": [
    {
      "args": {},
      "expansion": "que de",
      "name": "fr-adv"
    }
  ],
  "lang": "French",
  "lang_code": "fr",
  "pos": "adv",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "French entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        }
      ],
      "examples": [
        {
          "english": "— I hate travelling and explorers. Yet here I am proposing to tell the stories of my expeditions. But how long it has taken me to make up my mind to do so!",
          "ref": "1955, Claude Lévi-Strauss, chapter VII, in Tristes Tropiques, Plon, published 1993, page 67; republished as John & Doreen Weightman, transl., Tristes Tropiques, Penguin, 2011",
          "text": "Je hais les voyages et les explorateurs. Et voici que je m’apprête à raconter mes expéditions. Mais que de temps pour m’y résoudre!",
          "type": "quotation"
        }
      ],
      "glosses": [
        "how (modifier)"
      ],
      "id": "en-que_de-fr-adv-hGYRRj4D",
      "links": [
        [
          "how",
          "how"
        ]
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/kə də/"
    }
  ],
  "word": "que de"
}

{
  "head_templates": [
    {
      "args": {},
      "expansion": "que de",
      "name": "fr-adv"
    }
  ],
  "lang": "French",
  "lang_code": "fr",
  "pos": "adv",
  "senses": [
    {
      "categories": [
        "French adverbs",
        "French entries with incorrect language header",
        "French lemmas",
        "French multiword terms",
        "French terms with IPA pronunciation",
        "French terms with quotations"
      ],
      "examples": [
        {
          "english": "— I hate travelling and explorers. Yet here I am proposing to tell the stories of my expeditions. But how long it has taken me to make up my mind to do so!",
          "ref": "1955, Claude Lévi-Strauss, chapter VII, in Tristes Tropiques, Plon, published 1993, page 67; republished as John & Doreen Weightman, transl., Tristes Tropiques, Penguin, 2011",
          "text": "Je hais les voyages et les explorateurs. Et voici que je m’apprête à raconter mes expéditions. Mais que de temps pour m’y résoudre!",
          "type": "quotation"
        }
      ],
      "glosses": [
        "how (modifier)"
      ],
      "links": [
        [
          "how",
          "how"
        ]
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/kə də/"
    }
  ],
  "word": "que de"
}