better error message or different behavior when expecting slice of structs, but have single struct about graphql HOT 3 OPEN

var query struct {
		Organization struct {
			SamlIdentityProvider struct {
				ExternalIdentities struct {
					PageInfo struct {
						hasNextPage githubv4.Boolean
						endCursor   githubv4.String
					} `graphql:"pageInfo"`
					Edges []struct {
						Node struct {
							SamlIdentity struct {
								NameId   githubv4.String
								Username githubv4.String
							} `graphql:"samlIdentity"`
							User struct {
								Login githubv4.String
							} `graphql:"user"`
						} `graphql:"node"`
					} `graphql:"edges"`
				} `graphql:"externalIdentities(first: $first, after: $after)"`
			} `graphql:"samlIdentityProvider"`
		} `graphql:"organization(login: $login)"`
	}