sublime 4
<snippet>
<content><!--[CDATA[
Hello, ${1} is a ${2:snippet}. ${0}, ${3}
]]--></content>
<!-- Optional: Set a tabTrigger to define how to trigger the snippet -->
<tabtrigger>hello</tabtrigger>
<!-- Optional: Set a scope to limit where the snippet will trigger -->
<!-- <scope>source.python</scope> -->
</snippet>