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241 lines
7.1 KiB
241 lines
7.1 KiB
from django.contrib import admin
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from django.core.paginator import Paginator
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from django.db import connection
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from django.db.models import Count, F
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from django.urls import reverse
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from django.utils.html import escape
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from django.utils.safestring import mark_safe
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from hc.api.models import Channel, Check, Flip, Notification, Ping
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from hc.lib.date import format_duration
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@admin.register(Check)
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class ChecksAdmin(admin.ModelAdmin):
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class Media:
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css = {"all": ("css/admin/checks.css",)}
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search_fields = ["name", "code", "project__owner__email"]
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raw_id_fields = ("project",)
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list_display = (
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"id",
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"name_tags",
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"project_",
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"created",
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"n_pings",
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"timeout_schedule",
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"status",
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"last_start",
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"last_ping",
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)
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list_filter = ("status", "kind", "last_ping", "last_start")
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actions = ["send_alert"]
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def get_queryset(self, request):
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qs = super().get_queryset(request)
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qs = qs.annotate(email=F("project__owner__email"))
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qs = qs.annotate(project_name=F("project__name"))
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return qs
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@mark_safe
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def project_(self, obj):
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url = reverse("hc-checks", args=[obj.project.code])
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name = escape(obj.project_name or "Default")
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email = escape(obj.email)
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return f'{email} › <a href="{url}"">{name}</a>'
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@mark_safe
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def name_tags(self, obj):
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url = reverse("hc-details", args=[obj.code])
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name = escape(obj.name or "unnamed")
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s = f'<a href="{url}"">{name}</a>'
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for tag in obj.tags_list():
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s += " <span>%s</span>" % escape(tag)
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return s
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def timeout_schedule(self, obj):
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if obj.kind == "simple":
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return format_duration(obj.timeout)
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elif obj.kind == "cron":
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return obj.schedule
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else:
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return "Unknown"
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timeout_schedule.short_description = "Schedule"
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def send_alert(self, request, qs):
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for check in qs:
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for channel in check.channel_set.all():
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channel.notify(check)
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self.message_user(request, "%d alert(s) sent" % qs.count())
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send_alert.short_description = "Send Alert"
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class SchemeListFilter(admin.SimpleListFilter):
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title = "Scheme"
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parameter_name = "scheme"
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def lookups(self, request, model_admin):
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return (("http", "HTTP"), ("https", "HTTPS"), ("email", "Email"))
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def queryset(self, request, queryset):
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if self.value():
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queryset = queryset.filter(scheme=self.value())
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return queryset
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class MethodListFilter(admin.SimpleListFilter):
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title = "Method"
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parameter_name = "method"
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methods = ["HEAD", "GET", "POST", "PUT", "DELETE"]
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def lookups(self, request, model_admin):
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return zip(self.methods, self.methods)
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def queryset(self, request, queryset):
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if self.value():
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queryset = queryset.filter(method=self.value())
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return queryset
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class KindListFilter(admin.SimpleListFilter):
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title = "Kind"
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parameter_name = "kind"
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kinds = ["start", "fail"]
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def lookups(self, request, model_admin):
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return zip(self.kinds, self.kinds)
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def queryset(self, request, queryset):
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if self.value():
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queryset = queryset.filter(kind=self.value())
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return queryset
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# Adapted from: https://djangosnippets.org/snippets/2593/
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class LargeTablePaginator(Paginator):
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""" Overrides the count method to get an estimate instead of actual count
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when not filtered
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"""
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def _get_estimate(self):
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try:
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cursor = connection.cursor()
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cursor.execute(
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"SELECT reltuples FROM pg_class WHERE relname = %s",
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[self.object_list.query.model._meta.db_table],
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)
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return int(cursor.fetchone()[0])
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except:
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return 0
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def _get_count(self):
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"""
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Changed to use an estimate if the estimate is greater than 10,000
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Returns the total number of objects, across all pages.
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"""
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if not hasattr(self, "_count") or self._count is None:
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try:
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estimate = 0
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if not self.object_list.query.where:
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estimate = self._get_estimate()
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if estimate < 10000:
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self._count = self.object_list.count()
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else:
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self._count = estimate
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except (AttributeError, TypeError):
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# AttributeError if object_list has no count() method.
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# TypeError if object_list.count() requires arguments
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# (i.e. is of type list).
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self._count = len(self.object_list)
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return self._count
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count = property(_get_count)
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@admin.register(Ping)
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class PingsAdmin(admin.ModelAdmin):
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search_fields = ("owner__name", "owner__code")
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readonly_fields = ("owner",)
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list_select_related = ("owner",)
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list_display = ("id", "created", "owner", "scheme", "method", "ua")
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list_filter = ("created", SchemeListFilter, MethodListFilter, KindListFilter)
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paginator = LargeTablePaginator
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show_full_result_count = False
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@admin.register(Channel)
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class ChannelsAdmin(admin.ModelAdmin):
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class Media:
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css = {"all": ("css/admin/channels.css",)}
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search_fields = ["value", "project__owner__email"]
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list_display = (
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"id",
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"kind_",
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"name",
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"project_",
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"value",
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"num_notifications",
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)
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list_filter = ("kind",)
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raw_id_fields = ("project", "checks")
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@mark_safe
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def project_(self, obj):
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url = reverse("hc-checks", args=[obj.project_code])
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name = escape(obj.project_name or "Default")
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email = escape(obj.email)
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return f"{email} › <a href='{url}'>{name}</a>"
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def get_queryset(self, request):
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qs = super().get_queryset(request)
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qs = qs.annotate(Count("notification", distinct=True))
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qs = qs.annotate(project_code=F("project__code"))
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qs = qs.annotate(project_name=F("project__name"))
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qs = qs.annotate(email=F("project__owner__email"))
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return qs
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@mark_safe
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def kind_(self, obj):
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return f'<span class="icon-{ obj.kind }"></span> {obj.kind}'
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def num_notifications(self, obj):
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return obj.notification__count
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num_notifications.short_description = "# Notifications"
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@admin.register(Notification)
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class NotificationsAdmin(admin.ModelAdmin):
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search_fields = ["owner__name", "owner__code", "channel__value"]
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readonly_fields = ("owner",)
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list_select_related = ("owner", "channel")
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list_display = (
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"id",
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"created",
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"check_status",
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"owner",
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"channel_kind",
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"channel_value",
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"error",
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)
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list_filter = ("created", "check_status", "channel__kind")
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raw_id_fields = ("channel",)
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def channel_kind(self, obj):
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return obj.channel.kind
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def channel_value(self, obj):
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return obj.channel.value
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@admin.register(Flip)
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class FlipsAdmin(admin.ModelAdmin):
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list_display = ("id", "created", "processed", "owner", "old_status", "new_status")
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raw_id_fields = ("owner",)
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