how to load my alias using either exa/eza ?

[nbari]

Hi, this is my current .zsrhc

surce /usr/share/zinit/zinit.zsh
autoload -Uz _zinit
(( ${+_comps} )) && _comps[zinit]=_zinit

zinit for \
    atload"zicompinit; zicdreplay" \
    blockf \
    lucid \
    wait \
    zsh-users/zsh-completions

zinit load nbari/test    <--- here my test repo
zinit light kutsan/zsh-system-clipboard
zinit light zsh-users/zsh-syntax-highlighting

in repo nbari/test/test.plugin.zsh I have:

0=${(%):-%N}
source ${0:A:h}/test.zsh

And in test.zsh I am trying to set this alias:

if (( ${+commands[exa]} )); then
    LS_COMMAND='exa'
elif (( ${+commands[eza]} )); then
    LS_COMMAND='eza'
else
    LS_COMMAND='ls'
fi

if [[ $LS_COMMAND == 'ls' ]]; then
    alias l='ls -lah'
    alias ll='ls -alF'
    alias la='ls -A'
else
    alias ls="$LS_COMMAND"
    alias l="$LS_COMMAND -l --all --group-directories-first --git"
    ...
fi

If I load the .zsh with source test.zsh it works and LS_COMMAND is set to exa, but when loading it with zinit zinit load nbari/test it always defaults to ls.

Any idea of why this happens? how could I load alias using either exa or eza if found?