How to store vertex attributes in the vertex type accumulator

GSQL
1 
SetAccum<VERTEX<AM_CUSTOMER>> @@pps;
results = select s from AM_CUSTOMER:s POST-ACCUM @@pps += s;
PRINT @@pps;

Output:

[
  {
    "@@pps": [
      "MO189433",
      "MO190324",
      "MO187649"
    ]
}
]

In this output only “primary_ids” are stored
what to do if we want to store there attributes too ?
i know results output contains the attributes too
but ForEach loop wont work on the results

ForEach loop works on @@pps. that’s why we want the attributes inside @@pps

2

What is your reason for wanting to use a FOREACH?
Are you sure that you can’t use an SELECT statement to iterate on our vertex set?

If you need/want to store a set of vertices with a small number of their attributes, you can define a TUPLE, such as
TYPEDEF TYPE <id STRING, attr1 INT, attr2 STRING, attr3 FLOAT> vertexStruct;

Simple example of a query (degree centrality graph algorithm) that uses a user defined tuple: