[en] Early shallow-decaying X-ray afterglows of gamma-ray bursts (GRBs) may be attributed to the dipole radiations of newly born magnetars. Assuming that the GRB jets powered by magnetars are quasi-universal, we find that the jet structure can be parameterized as a uniform jet with a luminosity of $\mathrm{l}\mathrm{o}\mathrm{g}{L}_{\mathrm{j}}/\mathrm{e}\mathrm{r}\mathrm{g}{\mathrm{s}}^{-<!--\; ???\; -->1}={52.68}_{-<!--\; ???\; -->0.33}^{+0.76}$ (1σ) and an opening angle ${\mathrm{\theta <!--\; ??\; -->}}_{\mathrm{j}}={2.10}_{-<!--\; ???\; -->1.28}^{+1.90}$ (50% confidence level), surrounding by a power-law decay component with an index of $-<!--\; ???\; -->{4.00}_{-<!--\; ???\; -->0.37}^{+0.27}$ (1σ). The inferred local GRB rate is ρ = 9.6 Gpc⁻³ yr⁻¹ by including both the typical GRBs and LL-GRBs as the same population. The typical viewing angle is 3.3°, and may be 20° ∼ 30° for LL-GRBs. The X-ray luminosity function of the dipole radiation wind can be empirically described by a broken power-law function with indices ${\mathrm{\beta <!--\; ??\; -->}}_1={0.78}_{-<!--\; ???\; -->0.15}^{+0.16}$ and ${\mathrm{\beta <!--\; ??\; -->}}_2><!--\; >\; -->1.6$ broken at $\mathrm{l}\mathrm{o}\mathrm{g}{L}_{\mathrm{b},\mathrm{w}}/\mathrm{e}\mathrm{r}\mathrm{g}{\mathrm{s}}^{-<!--\; ???\; -->1}={48.51}_{-<!--\; ???\; -->0.65}^{+0.53}$. In the case where the wind outflow is collimated and coaxial with the GRB jet, we find that the wind structure is similar to the GRB jet, i.e., $\mathrm{l}\mathrm{o}\mathrm{g}{L}_{\mathrm{c},\mathrm{w}}/\mathrm{e}\mathrm{r}\mathrm{g}{\mathrm{s}}^{-<!--\; ???\; -->1}={48.38}_{-<!--\; ???\; -->0.48}^{+0.30}$, ${\mathrm{\theta <!--\; ??\; -->}}_{\mathrm{c},\mathrm{w}}={{2.65}^o}_{-<!--\; ???\; -->{1.19}^o}^{+1.{73}^o}$, and $k_{\mathrm{w}}={4.57}_{-<!--\; ???\; -->0.75}^{+1.21}$. The observed correlation between the prompt gamma-ray luminosity and X-ray luminosity of the wind may result from the viewing angle effect in such a jet–wind system. A discussion on surveys using the X-ray instruments on board the Einstein Probe mission in the soft X-ray band for the jet and wind emission is also presented.