Why is the connection type having binary as the third element of its tuple?

[dimitarvp]

When I am working with Sqlitex and opening connections, I always get a tri-tuple like the following:

{
  :connection,
  #Reference<0.1196713639.350486530.23370>,
  #Reference<0.1196713639.350617602.23368>
}

IMO the type should not be:

@type connection :: {:connection, reference, binary()}

but instead it should be:

@type connection :: {:connection, reference(), reference()}

Am I missing something obvious?

[ConnorRigby]

You are correct. Or welcome or I will take care of it tomorrow.

In all reality, this type should probably be opaque as the value can only be used to communicate with the NIF interface and should not be deconstructed

[dimitarvp]

I thought the same. No need for the type to be introspectable, I just want Dialyzer to not complain in my app.