metrics size: 243B
res1: { resource =
          Some(
            { attributes =
                [{ key = "service.name";
                   value = Some(String_value("unknown_service"));
                 }
                 ];
              dropped_attributes_count = 0;
            });
        scope_metrics =
          [{ scope =
               Some(
                 { name = "ocaml-otel";
                   version = "%%VERSION_NUM%%";
                   attributes = [];
                   dropped_attributes_count = 0;
                 });
             metrics =
               [{ name = "sum.foo";
                  description = "";
                  unit_ = "";
                  data =
                    Sum(
                      { data_points =
                          [{ attributes = [];
                             start_time_unix_nano = 42;
                             time_unix_nano = 45;
                             value = As_int(10);
                             exemplars = [];
                             flags = 0;
                           };
                           { attributes = [];
                             start_time_unix_nano = 52;
                             time_unix_nano = 55;
                             value = As_int(20);
                             exemplars = [];
                             flags = 0;
                           }
                           ];
                        aggregation_temporality =
                          Aggregation_temporality_cumulative;
                        is_monotonic = false;
                      });
                };
                { name = "gauge.bar";
                  description = "";
                  unit_ = "";
                  data =
                    Gauge(
                      { data_points =
                          [{ attributes = [];
                             start_time_unix_nano = 42;
                             time_unix_nano = 45;
                             value = As_double(10.);
                             exemplars = [];
                             flags = 0;
                           };
                           { attributes = [];
                             start_time_unix_nano = 52;
                             time_unix_nano = 55;
                             value = As_double(20.);
                             exemplars = [];
                             flags = 0;
                           }
                           ];
                      });
                }
                ];
             schema_url = "";
           }
           ];
        schema_url = "";
      }
res1: { resource =
          Some(
            { attributes =
                [{ key = "service.name";
                   value = Some(String_value("unknown_service"));
                 }
                 ];
              dropped_attributes_count = 0;
            });
        scope_metrics =
          [{ scope =
               Some(
                 { name = "ocaml-otel";
                   version = "%%VERSION_NUM%%";
                   attributes = [];
                   dropped_attributes_count = 0;
                 });
             metrics =
               [{ name = "sum.foo";
                  description = "";
                  unit_ = "";
                  data =
                    Sum(
                      { data_points =
                          [{ attributes = [];
                             start_time_unix_nano = 42;
                             time_unix_nano = 45;
                             value = As_int(10);
                             exemplars = [];
                             flags = 0;
                           };
                           { attributes = [];
                             start_time_unix_nano = 52;
                             time_unix_nano = 55;
                             value = As_int(20);
                             exemplars = [];
                             flags = 0;
                           }
                           ];
                        aggregation_temporality =
                          Aggregation_temporality_cumulative;
                        is_monotonic = false;
                      });
                };
                { name = "gauge.bar";
                  description = "";
                  unit_ = "";
                  data =
                    Gauge(
                      { data_points =
                          [{ attributes = [];
                             start_time_unix_nano = 42;
                             time_unix_nano = 45;
                             value = As_double(10.);
                             exemplars = [];
                             flags = 0;
                           };
                           { attributes = [];
                             start_time_unix_nano = 52;
                             time_unix_nano = 55;
                             value = As_double(20.);
                             exemplars = [];
                             flags = 0;
                           }
                           ];
                      });
                }
                ];
             schema_url = "";
           }
           ];
        schema_url = "";
      }