args: args{
				flatMap: map[string]string{
					"one.two.valuethree":      "onetwovaluethree",
					"one.two.three.valuefour": "onetwothreevaluefour",
					"extra":                   "thing",
				},
			},
			wantResult: map[string]any{
				"one": map[string]any{
					"two": map[string]any{
						"valuethree": "onetwovaluethree",
						"three": map[string]any{
							"valuefour": "onetwothreevaluefour",
						},