call ale#Set('go_go_executable', 'go')

function! ale#fixers#gomod#Fix(buffer) abort
    let l:executable = ale#Var(a:buffer, 'go_go_executable')
    let l:env = ale#go#EnvString(a:buffer)

    return {
    \   'command': l:env . ale#Escape(l:executable) . ' mod edit -fmt %t',
    \   'read_temporary_file': 1,
    \}
endfunction