You're seeing just the macro tag, go back to Domo.TaggedTuple module for more information.
Link to this macro

tag(value, tag_chain)

View Source (macro)

Returns a tagged tuple by joining the tag chain with the value.

The macro supports up to 6 links in the tag chain.


iex> use Domo.TaggedTuple
...> tag(2.5, SomeTag)
{SomeTag, 2.5}

iex> use Domo.TaggedTuple
...> tag(7, {A, {Tag, Chain}})
{A, {Tag, {Chain, 7}}}