Return a list of activities in a stream

{
    "operationName": "getactivities",
    "communication": {
        "token": "eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.dXNlcm5hbWU6ImR1bW15dXNlciIsImV4cCI6MTY4MDAwMDAwMH0.abc123XYZ456def789GHI012jkl345MNO678pqr901STU234vwx567YZ"
    },
    "operationArguments": {
        "stream": "test_stream@/DemoPvob"
    }
}
operationName: string

Name of the operation

"getactivities"
communication: object
token: string

Token which will be used for authorization

"eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.dXNlcm5hbWU6ImR1bW15dXNlciIsImV4cCI6MTY4MDAwMDAwMH0.abc123XYZ456def789GHI012jkl345MNO678pqr901STU234vwx567YZ"
operationArguments: object
stream: string

Stream name to query for activities

"test_stream@/DemoPvob"