create alias generation_1_pokémon (0) -> generation_i_pokemon (0)
create alias generation_2_pokémon (0) -> generation_ii_pokemon (0)
create alias generation_3_pokémon (0) -> generation_iii_pokemon (0)
create alias generation_4_pokémon (0) -> generation_iv_pokemon (0)
create alias generation_5_pokémon (0) -> generation_v_pokemon (0)
create alias generation_6_pokémon (0) -> generation_vi_pokemon (0)
create alias generation_7_pokémon (0) -> generation_vii_pokemon (0)
create alias generation_8_pokémon (0) -> generation_viii_pokemon (0)
create alias generation_9_pokémon (0) -> generation_ix_pokemon (0)