diff --git a/tests/logs/test_logs_e2e.expected b/tests/logs/test_logs_e2e.expected
index e408710e..58c42959 100644
--- a/tests/logs/test_logs_e2e.expected
+++ b/tests/logs/test_logs_e2e.expected
@@ -8,7 +8,7 @@
            { key = "src"; value = Some(String_value("application")); };
            { key = "my_reporter_attr"; value = Some(String_value("foo")); }
            ];
-        dropped_attributes_count = 0;
+        dropped_attributes_count = 0;(* absent *)
       });
   scope_logs =
     [{ scope =
@@ -16,7 +16,7 @@
            { name = "ocaml-otel";
              version = "%%VERSION_NUM%%";
              attributes = [];
-             dropped_attributes_count = 0;
+             dropped_attributes_count = 0;(* absent *)
            });
        log_records =
          [{ time_unix_nano = 0;
@@ -25,16 +25,16 @@
             severity_text = "debug";
             body = Some(String_value("emit_logs: starting"));
             attributes = [];
-            dropped_attributes_count = 0;
-            flags = 0;
-            trace_id = <bytes len=0>;
-            span_id = <bytes len=0>;
+            dropped_attributes_count = 0;(* absent *)
+            flags = 0;(* absent *)
+            trace_id = <bytes len=0>;(* absent *)
+            span_id = <bytes len=0>;(* absent *)
           }
           ];
-       schema_url = "";
+       schema_url = "";(* absent *)
      }
      ];
-  schema_url = "";
+  schema_url = "";(* absent *)
 }
 { resource =
       Some(
@@ -46,7 +46,7 @@
              { key = "src"; value = Some(String_value("application")); };
              { key = "my_reporter_attr"; value = Some(String_value("foo")); }
              ];
-          dropped_attributes_count = 0;
+          dropped_attributes_count = 0;(* absent *)
         });
     scope_logs =
       [{ scope =
@@ -54,7 +54,7 @@
              { name = "ocaml-otel";
                version = "%%VERSION_NUM%%";
                attributes = [];
-               dropped_attributes_count = 0;
+               dropped_attributes_count = 0;(* absent *)
              });
          log_records =
            [{ time_unix_nano = 0;
@@ -63,16 +63,16 @@
               severity_text = "info";
               body = Some(String_value("emit_logs: info log"));
               attributes = [];
-              dropped_attributes_count = 0;
-              flags = 0;
-              trace_id = <bytes len=0>;
-              span_id = <bytes len=0>;
+              dropped_attributes_count = 0;(* absent *)
+              flags = 0;(* absent *)
+              trace_id = <bytes len=0>;(* absent *)
+              span_id = <bytes len=0>;(* absent *)
             }
             ];
-         schema_url = "";
+         schema_url = "";(* absent *)
        }
        ];
-    schema_url = "";
+    schema_url = "";(* absent *)
   }
 { resource =
         Some(
@@ -86,7 +86,7 @@
                { key = "src"; value = Some(String_value("application")); };
                { key = "my_reporter_attr"; value = Some(String_value("foo")); }
                ];
-            dropped_attributes_count = 0;
+            dropped_attributes_count = 0;(* absent *)
           });
       scope_logs =
         [{ scope =
@@ -94,7 +94,7 @@
                { name = "ocaml-otel";
                  version = "%%VERSION_NUM%%";
                  attributes = [];
-                 dropped_attributes_count = 0;
+                 dropped_attributes_count = 0;(* absent *)
                });
            log_records =
              [{ time_unix_nano = 0;
@@ -103,16 +103,16 @@
                 severity_text = "warning";
                 body = Some(String_value("emit_logs: warn log"));
                 attributes = [];
-                dropped_attributes_count = 0;
-                flags = 0;
-                trace_id = <bytes len=0>;
-                span_id = <bytes len=0>;
+                dropped_attributes_count = 0;(* absent *)
+                flags = 0;(* absent *)
+                trace_id = <bytes len=0>;(* absent *)
+                span_id = <bytes len=0>;(* absent *)
               }
               ];
-           schema_url = "";
+           schema_url = "";(* absent *)
          }
          ];
-      schema_url = "";
+      schema_url = "";(* absent *)
     }
 { resource =
           Some(
@@ -128,7 +128,7 @@
                    value = Some(String_value("foo"));
                  }
                  ];
-              dropped_attributes_count = 0;
+              dropped_attributes_count = 0;(* absent *)
             });
         scope_logs =
           [{ scope =
@@ -136,7 +136,7 @@
                  { name = "ocaml-otel";
                    version = "%%VERSION_NUM%%";
                    attributes = [];
-                   dropped_attributes_count = 0;
+                   dropped_attributes_count = 0;(* absent *)
                  });
              log_records =
                [{ time_unix_nano = 0;
@@ -145,16 +145,16 @@
                   severity_text = "error";
                   body = Some(String_value("emit_logs: error log"));
                   attributes = [];
-                  dropped_attributes_count = 0;
-                  flags = 0;
-                  trace_id = <bytes len=0>;
-                  span_id = <bytes len=0>;
+                  dropped_attributes_count = 0;(* absent *)
+                  flags = 0;(* absent *)
+                  trace_id = <bytes len=0>;(* absent *)
+                  span_id = <bytes len=0>;(* absent *)
                 }
                 ];
-             schema_url = "";
+             schema_url = "";(* absent *)
            }
            ];
-        schema_url = "";
+        schema_url = "";(* absent *)
       }
 { resource =
             Some(
@@ -170,7 +170,7 @@
                      value = Some(String_value("foo"));
                    }
                    ];
-                dropped_attributes_count = 0;
+                dropped_attributes_count = 0;(* absent *)
               });
           scope_logs =
             [{ scope =
@@ -178,7 +178,7 @@
                    { name = "ocaml-otel";
                      version = "%%VERSION_NUM%%";
                      attributes = [];
-                     dropped_attributes_count = 0;
+                     dropped_attributes_count = 0;(* absent *)
                    });
                log_records =
                  [{ time_unix_nano = 0;
@@ -187,16 +187,16 @@
                     severity_text = "app";
                     body = Some(String_value("emit_logs: app log"));
                     attributes = [];
-                    dropped_attributes_count = 0;
-                    flags = 0;
-                    trace_id = <bytes len=0>;
-                    span_id = <bytes len=0>;
+                    dropped_attributes_count = 0;(* absent *)
+                    flags = 0;(* absent *)
+                    trace_id = <bytes len=0>;(* absent *)
+                    span_id = <bytes len=0>;(* absent *)
                   }
                   ];
-               schema_url = "";
+               schema_url = "";(* absent *)
              }
              ];
-          schema_url = "";
+          schema_url = "";(* absent *)
         }
 { resource =
               Some(
@@ -221,7 +221,7 @@
                        value = Some(String_value("foo"));
                      }
                      ];
-                  dropped_attributes_count = 0;
+                  dropped_attributes_count = 0;(* absent *)
                 });
             scope_logs =
               [{ scope =
@@ -229,7 +229,7 @@
                      { name = "ocaml-otel";
                        version = "%%VERSION_NUM%%";
                        attributes = [];
-                       dropped_attributes_count = 0;
+                       dropped_attributes_count = 0;(* absent *)
                      });
                  log_records =
                    [{ time_unix_nano = 0;
@@ -241,16 +241,16 @@
                           String_value(
                             "emit_logs: this log is emitted with varied tags from a span"));
                       attributes = [];
-                      dropped_attributes_count = 0;
-                      flags = 0;
+                      dropped_attributes_count = 0;(* absent *)
+                      flags = 0;(* absent *)
                       trace_id = <bytes len=16>;
                       span_id = <bytes len=8>;
                     }
                     ];
-                 schema_url = "";
+                 schema_url = "";(* absent *)
                }
                ];
-            schema_url = "";
+            schema_url = "";(* absent *)
           }
 { resource =
                 Some(
@@ -275,7 +275,7 @@
                          value = Some(String_value("foo"));
                        }
                        ];
-                    dropped_attributes_count = 0;
+                    dropped_attributes_count = 0;(* absent *)
                   });
               scope_logs =
                 [{ scope =
@@ -283,7 +283,7 @@
                        { name = "ocaml-otel";
                          version = "%%VERSION_NUM%%";
                          attributes = [];
-                         dropped_attributes_count = 0;
+                         dropped_attributes_count = 0;(* absent *)
                        });
                    log_records =
                      [{ time_unix_nano = 0;
@@ -295,16 +295,16 @@
                             String_value(
                               "emit_logs: this log will be emitted with varied tags"));
                         attributes = [];
-                        dropped_attributes_count = 0;
-                        flags = 0;
-                        trace_id = <bytes len=0>;
-                        span_id = <bytes len=0>;
+                        dropped_attributes_count = 0;(* absent *)
+                        flags = 0;(* absent *)
+                        trace_id = <bytes len=0>;(* absent *)
+                        span_id = <bytes len=0>;(* absent *)
                       }
                       ];
-                   schema_url = "";
+                   schema_url = "";(* absent *)
                  }
                  ];
-              schema_url = "";
+              schema_url = "";(* absent *)
             }
 { resource =
                   Some(
@@ -322,7 +322,7 @@
                            value = Some(String_value("bar"));
                          }
                          ];
-                      dropped_attributes_count = 0;
+                      dropped_attributes_count = 0;(* absent *)
                     });
                 scope_logs =
                   [{ scope =
@@ -330,7 +330,7 @@
                          { name = "ocaml-otel";
                            version = "%%VERSION_NUM%%";
                            attributes = [];
-                           dropped_attributes_count = 0;
+                           dropped_attributes_count = 0;(* absent *)
                          });
                      log_records =
                        [{ time_unix_nano = 0;
@@ -342,14 +342,14 @@
                               String_value(
                                 "emit_logs: this log will be emitted from otel and fmt reporter"));
                           attributes = [];
-                          dropped_attributes_count = 0;
-                          flags = 0;
-                          trace_id = <bytes len=0>;
-                          span_id = <bytes len=0>;
+                          dropped_attributes_count = 0;(* absent *)
+                          flags = 0;(* absent *)
+                          trace_id = <bytes len=0>;(* absent *)
+                          span_id = <bytes len=0>;(* absent *)
                         }
                         ];
-                     schema_url = "";
+                     schema_url = "";(* absent *)
                    }
                    ];
-                schema_url = "";
+                schema_url = "";(* absent *)
               }