How to fetch all variants of a product from shopify graphql api?

I want to fetch all variants of a product suing shopify graphql api, but it seems like we have to define the number of variants or any other thing we want by using first argument after the query. I want to get all variants of the product instead of defining a number of variants, how can this be possible?

const myproducts = await axios({
        url: `https://${req.session.shop}/admin/api/2022-01/graphql.json`,
        method: 'post',
        headers: {
          "X-Shopify-Access-Token": req.session.token,
        },
        data: {
            query: `
                {
                  product(id: "gid://shopify/Product/6829796196490") {
                    title
                    variants(first: 5) {
                      edges {
                        cursor
                        node {
                          selectedOptions {
                            name
                            value
                          }
                          media(first: 5) {
                            edges {
                              node {
                                alt
                                mediaContentType
                                status
                                __typename
                                ... on MediaImage {
                                  id
                                  preview {
                                    image {
                                      originalSrc
                                    }
                                  }
                                  __typename
                                }
                              }
                            }
                          }
                        }
                      }

                      pageInfo {
                        hasNextPage
                        
                      }
                    }
                  }
                }
            `,
        }

    });