The organized TPT lua reference

From the point of a person that speaks lua

You can hash-link to any element of this tree,
like this:
Functions are colored in the return type,
and the arguments are colored in their types,
with the default value (if any) following the argument in braces:
A function that returns a string,
and takes an element and a number as its arguments.
If the number is omitted, the default value of 13 will be used

If a function returns multiple values, they are covered in the description.