treeherder/perf/migrations/0053_performancealertsummarytesting_and_more.py [108:157]:
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            fields=[
                ("id", models.AutoField(primary_key=True, serialize=False)),
                ("is_regression", models.BooleanField()),
                ("starred", models.BooleanField(default=False)),
                ("created", models.DateTimeField(auto_now_add=True, null=True)),
                ("first_triaged", models.DateTimeField(default=None, null=True)),
                ("last_updated", models.DateTimeField(auto_now=True, null=True)),
                (
                    "status",
                    models.IntegerField(
                        choices=[
                            (0, "Untriaged"),
                            (1, "Downstream"),
                            (2, "Reassigned"),
                            (3, "Invalid"),
                            (4, "Acknowledged"),
                        ],
                        default=0,
                    ),
                ),
                (
                    "amount_pct",
                    models.FloatField(
                        help_text="Amount in percentage that series has changed"
                    ),
                ),
                (
                    "amount_abs",
                    models.FloatField(
                        help_text="Absolute amount that series has changed"
                    ),
                ),
                (
                    "prev_value",
                    models.FloatField(
                        help_text="Previous value of series before change"
                    ),
                ),
                (
                    "new_value",
                    models.FloatField(help_text="New value of series after change"),
                ),
                (
                    "t_value",
                    models.FloatField(
                        help_text="t value out of analysis indicating confidence that change is 'real'",
                        null=True,
                    ),
                ),
                (
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treeherder/perf/migrations/0057_performancealert_confidence_and_more.py [267:316]:
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            fields=[
                ("id", models.AutoField(primary_key=True, serialize=False)),
                ("is_regression", models.BooleanField()),
                ("starred", models.BooleanField(default=False)),
                ("created", models.DateTimeField(auto_now_add=True, null=True)),
                ("first_triaged", models.DateTimeField(default=None, null=True)),
                ("last_updated", models.DateTimeField(auto_now=True, null=True)),
                (
                    "status",
                    models.IntegerField(
                        choices=[
                            (0, "Untriaged"),
                            (1, "Downstream"),
                            (2, "Reassigned"),
                            (3, "Invalid"),
                            (4, "Acknowledged"),
                        ],
                        default=0,
                    ),
                ),
                (
                    "amount_pct",
                    models.FloatField(
                        help_text="Amount in percentage that series has changed"
                    ),
                ),
                (
                    "amount_abs",
                    models.FloatField(
                        help_text="Absolute amount that series has changed"
                    ),
                ),
                (
                    "prev_value",
                    models.FloatField(
                        help_text="Previous value of series before change"
                    ),
                ),
                (
                    "new_value",
                    models.FloatField(help_text="New value of series after change"),
                ),
                (
                    "t_value",
                    models.FloatField(
                        help_text="t value out of analysis indicating confidence that change is 'real'",
                        null=True,
                    ),
                ),
                (
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