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OpenTelemetry","\u002Fcompare\u002Fopentelemetry","8.compare\u002F2.opentelemetry",{"title":591,"path":592,"stem":593,"icon":567},"evlog vs LogTape","\u002Fcompare\u002Flogtape","8.compare\u002F3.logtape",{"title":595,"path":596,"stem":597,"icon":567},"evlog vs Winston: formats and request events","\u002Fcompare\u002Fwinston","8.compare\u002F4.winston",{"title":599,"path":600,"stem":601,"icon":567},"evlog vs Consola: reporters and request context","\u002Fcompare\u002Fconsola","8.compare\u002F5.consola",{"id":603,"title":304,"body":604,"description":2392,"extension":2393,"links":2394,"meta":2395,"navigation":2396,"path":305,"seo":2397,"stem":306,"__hash__":2398},"docs\u002F4.integrate\u002Fframeworks\u002F14.astro.md",{"type":605,"value":606,"toc":2380},"minimark",[607,616,660,669,745,749,754,825,829,1269,1273,1381,1384,1391,1659,1704,1708,1715,2094,2097,2107,2111,2117,2333,2338,2342,2376],[608,609,610,611,615],"p",{},"Astro doesn't have a dedicated evlog integration. Instead, use the core ",[612,613,614],"code",{},"evlog"," package with Astro's middleware to create request-scoped loggers manually.",[617,618,621,624,646],"prompt",{":actions":619,"description":620,"icon":307},"[\"copy\",\"cursor\",\"claude\"]","Set up evlog in my Astro app",[608,622,623],{},"Set up evlog in my Astro app.",[625,626,627,631,634,637,640,643],"ul",{},[628,629,630],"li",{},"Install evlog: pnpm add evlog",[628,632,633],{},"Import initLogger and createRequestLogger from 'evlog'",[628,635,636],{},"Call initLogger({ env: { service: 'my-app' } }) in Astro middleware",[628,638,639],{},"Create a request logger with createRequestLogger({ method, path }) per request",[628,641,642],{},"Use log.set() in API routes and middleware to accumulate context",[628,644,645],{},"Call log.emit() before returning the response (no auto-emit lifecycle)",[608,647,648,649,655,656],{},"Docs: ",[650,651,652],"a",{"href":652,"rel":653},"https:\u002F\u002Fwww.evlog.dev\u002Fintegrate\u002Fframeworks\u002Fastro",[654],"nofollow","\nAdapters: ",[650,657,658],{"href":658,"rel":659},"https:\u002F\u002Fwww.evlog.dev\u002Fintegrate\u002Fadapters\u002Foverview",[654],[661,662,664,665,668],"callout",{"color":663,"icon":13},"info","This is a guide-level integration. It uses the generic ",[612,666,667],{},"createRequestLogger"," API rather than a framework-specific module.",[661,670,673,719,732],{"color":671,"icon":672},"warning","i-lucide-cloud",[608,674,675,676,679,680,683,684,687,688,690,691,694,695,700,701,706,707,710,711,718],{},"On ",[677,678,295],"strong",{}," (including Astro with ",[612,681,682],{},"@astrojs\u002Fcloudflare","), set ",[612,685,686],{},"waitUntil"," on ",[612,689,667],{}," to your ",[612,692,693],{},"ExecutionContext#waitUntil"," (properly bound), or use ",[650,696,697],{"href":296},[612,698,699],{},"defineWorkerFetch"," \u002F ",[650,702,703],{"href":296},[612,704,705],{},"createWorkersLogger"," with ",[612,708,709],{},"{ executionCtx }"," on a ",[677,712,713,714,717],{},"Worker ",[612,715,716],{},"fetch"," entry",". Otherwise async drains may never finish after the response is returned.",[608,720,721,722,725,726,728,729,731],{},"For Astro ",[677,723,724],{},"middleware"," (not the raw Worker handler), there is no ",[612,727,699],{},"; you still pass ",[612,730,686],{}," from the adapter-exposed context.",[608,733,734,735,738,739,744],{},"The exact way to read ",[612,736,737],{},"ctx"," from Astro middleware depends on your adapter version, so check the ",[650,740,743],{"href":741,"rel":742},"https:\u002F\u002Fdocs.astro.build\u002Fen\u002Fguides\u002Fintegrations-guide\u002Fcloudflare\u002F",[654],"Cloudflare adapter docs",".",[746,747,25],"h2",{"id":748},"quick-start",[750,751,753],"h3",{"id":752},"_1-install","1. Install",[755,756,757,782,796,810],"code-group",{},[758,759,765],"pre",{"className":760,"code":761,"filename":762,"language":763,"meta":764,"style":764},"language-bash shiki shiki-themes material-theme-lighter material-theme material-theme-palenight","pnpm add evlog\n","pnpm","bash","",[612,766,767],{"__ignoreMap":764},[768,769,772,775,779],"span",{"class":770,"line":771},"line",1,[768,773,762],{"class":774},"sBMFI",[768,776,778],{"class":777},"sfazB"," add",[768,780,781],{"class":777}," evlog\n",[758,783,786],{"className":760,"code":784,"filename":785,"language":763,"meta":764,"style":764},"bun add evlog\n","bun",[612,787,788],{"__ignoreMap":764},[768,789,790,792,794],{"class":770,"line":771},[768,791,785],{"class":774},[768,793,778],{"class":777},[768,795,781],{"class":777},[758,797,800],{"className":760,"code":798,"filename":799,"language":763,"meta":764,"style":764},"yarn add evlog\n","yarn",[612,801,802],{"__ignoreMap":764},[768,803,804,806,808],{"class":770,"line":771},[768,805,799],{"class":774},[768,807,778],{"class":777},[768,809,781],{"class":777},[758,811,814],{"className":760,"code":812,"filename":813,"language":763,"meta":764,"style":764},"npm install evlog\n","npm",[612,815,816],{"__ignoreMap":764},[768,817,818,820,823],{"class":770,"line":771},[768,819,813],{"class":774},[768,821,822],{"class":777}," install",[768,824,781],{"class":777},[750,826,828],{"id":827},"_2-create-a-middleware","2. Create a middleware",[758,830,835],{"className":831,"code":832,"filename":833,"language":834,"meta":764,"style":764},"language-typescript shiki shiki-themes material-theme-lighter material-theme material-theme-palenight","import { defineMiddleware } from 'astro:middleware'\nimport { initLogger, createRequestLogger } from 'evlog'\n\ninitLogger({\n  env: { service: 'my-astro-app' },\n})\n\nexport const onRequest = defineMiddleware(async ({ request, locals }, next) => {\n  const url = new URL(request.url)\n\n  const log = createRequestLogger({\n    method: request.method,\n    path: url.pathname,\n  })\n\n  locals.log = log\n\n  try {\n    const response = await next()\n    log.emit()\n    return response\n  } catch (error) {\n    log.error(error instanceof Error ? error : new Error(String(error)))\n    log.emit()\n    throw error\n  }\n})\n","src\u002Fmiddleware.ts","typescript",[612,836,837,866,892,899,912,940,949,954,1004,1034,1039,1055,1073,1090,1098,1103,1119,1124,1132,1151,1164,1173,1192,1236,1247,1256,1262],{"__ignoreMap":764},[768,838,839,843,847,851,854,857,860,863],{"class":770,"line":771},[768,840,842],{"class":841},"s7zQu","import",[768,844,846],{"class":845},"sMK4o"," {",[768,848,850],{"class":849},"sTEyZ"," defineMiddleware",[768,852,853],{"class":845}," }",[768,855,856],{"class":841}," from",[768,858,859],{"class":845}," '",[768,861,862],{"class":777},"astro:middleware",[768,864,865],{"class":845},"'\n",[768,867,869,871,873,876,879,882,884,886,888,890],{"class":770,"line":868},2,[768,870,842],{"class":841},[768,872,846],{"class":845},[768,874,875],{"class":849}," initLogger",[768,877,878],{"class":845},",",[768,880,881],{"class":849}," 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\u002F>\n",[768,1311,1312],{"class":770,"line":868},[768,1313,898],{"emptyLinePlaceholder":897},[768,1315,1316,1318,1321,1323,1326,1328,1330,1332,1334],{"class":770,"line":894},[768,1317,842],{"class":841},[768,1319,1320],{"class":841}," type",[768,1322,846],{"class":845},[768,1324,1325],{"class":849}," RequestLogger",[768,1327,853],{"class":845},[768,1329,856],{"class":841},[768,1331,859],{"class":845},[768,1333,614],{"class":777},[768,1335,865],{"class":845},[768,1337,1338],{"class":770,"line":901},[768,1339,898],{"emptyLinePlaceholder":897},[768,1341,1342,1345,1348,1351],{"class":770,"line":914},[768,1343,1344],{"class":962},"declare",[768,1346,1347],{"class":962}," namespace",[768,1349,1350],{"class":774}," App",[768,1352,1003],{"class":845},[768,1354,1355,1358,1361],{"class":770,"line":942},[768,1356,1357],{"class":962},"  interface",[768,1359,1360],{"class":774}," 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})\n}\n","src\u002Fpages\u002Fapi\u002Fusers\u002F[id].ts",[612,1396,1397,1419,1423,1457,1500,1504,1533,1587,1591,1622,1649,1655],{"__ignoreMap":764},[768,1398,1399,1401,1403,1405,1408,1410,1412,1414,1417],{"class":770,"line":771},[768,1400,842],{"class":841},[768,1402,1320],{"class":841},[768,1404,846],{"class":845},[768,1406,1407],{"class":849}," APIRoute",[768,1409,853],{"class":845},[768,1411,856],{"class":841},[768,1413,859],{"class":845},[768,1415,1416],{"class":777},"astro",[768,1418,865],{"class":845},[768,1420,1421],{"class":770,"line":868},[768,1422,898],{"emptyLinePlaceholder":897},[768,1424,1425,1427,1429,1432,1434,1436,1438,1441,1443,1446,1448,1450,1453,1455],{"class":770,"line":894},[768,1426,959],{"class":841},[768,1428,963],{"class":962},[768,1430,1431],{"class":849}," GET",[768,1433,921],{"class":845},[768,1435,1407],{"class":774},[768,1437,1015],{"class":845},[768,1439,1440],{"class":962}," async",[768,1442,979],{"class":845},[768,1444,1445],{"class":982}," params",[768,1447,878],{"class":845},[768,1449,988],{"class":982},[768,1451,1452],{"class":845}," })",[768,1454,1000],{"class":962},[768,1456,1003],{"class":845},[768,1458,1459,1461,1463,1465,1467,1470,1472,1475,1478,1480,1482,1485,1487,1489,1491,1494,1496,1498],{"class":770,"line":901},[768,1460,1108],{"class":849},[768,1462,744],{"class":845},[768,1464,1113],{"class":849},[768,1466,744],{"class":845},[768,1468,1469],{"class":904},"set",[768,1471,908],{"class":917},[768,1473,1474],{"class":845},"{",[768,1476,1477],{"class":917}," user",[768,1479,921],{"class":845},[768,1481,846],{"class":845},[768,1483,1484],{"class":917}," 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plan",[768,1573,921],{"class":845},[768,1575,1477],{"class":849},[768,1577,744],{"class":845},[768,1579,1580],{"class":849},"plan",[768,1582,853],{"class":845},[768,1584,853],{"class":845},[768,1586,948],{"class":917},[768,1588,1589],{"class":770,"line":956},[768,1590,898],{"emptyLinePlaceholder":897},[768,1592,1593,1596,1598,1601,1603,1606,1608,1611,1613,1616,1618,1620],{"class":770,"line":1006},[768,1594,1595],{"class":841},"  return",[768,1597,1018],{"class":845},[768,1599,1600],{"class":904}," Response",[768,1602,908],{"class":917},[768,1604,1605],{"class":849},"JSON",[768,1607,744],{"class":845},[768,1609,1610],{"class":904},"stringify",[768,1612,908],{"class":917},[768,1614,1615],{"class":849},"user",[768,1617,997],{"class":917},[768,1619,878],{"class":845},[768,1621,1003],{"class":845},[768,1623,1624,1627,1629,1631,1633,1636,1638,1640,1642,1645,1647],{"class":770,"line":1036},[768,1625,1626],{"class":917},"    headers",[768,1628,921],{"class":845},[768,1630,846],{"class":845},[768,1632,859],{"class":845},[768,1634,1635],{"class":917},"Content-Type",[768,1637,936],{"class":845},[768,1639,921],{"class":845},[768,1641,859],{"class":845},[768,1643,1644],{"class":777},"application\u002Fjson",[768,1646,936],{"class":845},[768,1648,939],{"class":845},[768,1650,1651,1653],{"class":770,"line":1041},[768,1652,1095],{"class":845},[768,1654,948],{"class":917},[768,1656,1657],{"class":770,"line":1057},[768,1658,1380],{"class":845},[758,1660,1663],{"className":760,"code":1661,"filename":1662,"language":763,"meta":764,"style":764},"14:58:15 INFO [my-astro-app] GET \u002Fapi\u002Fusers\u002Fusr_123\n  ├─ user: id=usr_123 name=Alice plan=pro\n  └─ requestId: 4a8ff3a8-...\n","Terminal output",[612,1664,1665,1676,1693],{"__ignoreMap":764},[768,1666,1667,1670,1673],{"class":770,"line":771},[768,1668,1669],{"class":774},"14:58:15",[768,1671,1672],{"class":777}," INFO",[768,1674,1675],{"class":849}," [my-astro-app] GET \u002Fapi\u002Fusers\u002Fusr_123\n",[768,1677,1678,1681,1684,1687,1690],{"class":770,"line":868},[768,1679,1680],{"class":774},"  ├─",[768,1682,1683],{"class":777}," user:",[768,1685,1686],{"class":777}," id=usr_123",[768,1688,1689],{"class":777}," name=Alice",[768,1691,1692],{"class":777}," plan=pro\n",[768,1694,1695,1698,1701],{"class":770,"line":894},[768,1696,1697],{"class":774},"  └─",[768,1699,1700],{"class":777}," requestId:",[768,1702,1703],{"class":777}," 4a8ff3a8-...\n",[746,1705,1707],{"id":1706},"error-handling","Error Handling",[608,1709,1710,1711,1714],{},"Use ",[612,1712,1713],{},"createError"," for structured errors:",[758,1716,1719],{"className":831,"code":1717,"filename":1718,"language":834,"meta":764,"style":764},"import type { APIRoute } from 'astro'\nimport { createError, parseError } from 'evlog'\n\nexport const POST: APIRoute = async ({ request, locals }) => {\n  const body = await request.json()\n  locals.log.set({ cart: { items: body.items } })\n\n  if (!body.paymentMethod) {\n    const error = createError({\n      status: 400,\n      message: 'Missing payment method',\n      why: 'No payment method was provided',\n      fix: 'Include a paymentMethod field in the request body',\n    })\n    locals.log.error(error)\n    const parsed = parseError(error)\n    return new Response(JSON.stringify(parsed), { status: parsed.status })\n  }\n\n  return new Response(JSON.stringify({ success: true }))\n}\n","src\u002Fpages\u002Fapi\u002Fcheckout.ts",[612,1720,1721,1741,1765,1769,1800,1820,1861,1865,1887,1901,1914,1930,1946,1962,1969,1988,2005,2048,2052,2056,2090],{"__ignoreMap":764},[768,1722,1723,1725,1727,1729,1731,1733,1735,1737,1739],{"class":770,"line":771},[768,1724,842],{"class":841},[768,1726,1320],{"class":841},[768,1728,846],{"class":845},[768,1730,1407],{"class":849},[768,1732,853],{"class":845},[768,1734,856],{"class":841},[768,1736,859],{"class":845},[768,1738,1416],{"class":777},[768,1740,865],{"class":845},[768,1742,1743,1745,1747,1750,1752,1755,1757,1759,1761,1763],{"class":770,"line":868},[768,1744,842],{"class":841},[768,1746,846],{"class":845},[768,1748,1749],{"class":849}," createError",[768,1751,878],{"class":845},[768,1753,1754],{"class":849}," parseError",[768,1756,853],{"class":845},[768,1758,856],{"class":841},[768,1760,859],{"class":845},[768,1762,614],{"class":777},[768,1764,865],{"class":845},[768,1766,1767],{"class":770,"line":894},[768,1768,898],{"emptyLinePlaceholder":897},[768,1770,1771,1773,1775,1778,1780,1782,1784,1786,1788,1790,1792,1794,1796,1798],{"class":770,"line":901},[768,1772,959],{"class":841},[768,1774,963],{"class":962},[768,1776,1777],{"class":849}," POST",[768,1779,921],{"class":845},[768,1781,1407],{"class":774},[768,1783,1015],{"class":845},[768,1785,1440],{"class":962},[768,1787,979],{"class":845},[768,1789,983],{"class":982},[768,1791,878],{"class":845},[768,1793,988],{"class":982},[768,1795,1452],{"class":845},[768,1797,1000],{"class":962},[768,1799,1003],{"class":845},[768,1801,1802,1804,1807,1809,1811,1813,1815,1818],{"class":770,"line":914},[768,1803,1009],{"class":962},[768,1805,1806],{"class":849}," body",[768,1808,1015],{"class":845},[768,1810,1145],{"class":841},[768,1812,983],{"class":849},[768,1814,744],{"class":845},[768,1816,1817],{"class":904},"json",[768,1819,1150],{"class":917},[768,1821,1822,1824,1826,1828,1830,1832,1834,1836,1839,1841,1843,1846,1848,1850,1852,1855,1857,1859],{"class":770,"line":942},[768,1823,1108],{"class":849},[768,1825,744],{"class":845},[768,1827,1113],{"class":849},[768,1829,744],{"class":845},[768,1831,1469],{"class":904},[768,1833,908],{"class":917},[768,1835,1474],{"class":845},[768,1837,1838],{"class":917}," cart",[768,1840,921],{"class":845},[768,1842,846],{"class":845},[768,1844,1845],{"class":917}," items",[768,1847,921],{"class":845},[768,1849,1806],{"class":849},[768,1851,744],{"class":845},[768,1853,1854],{"class":849},"items",[768,1856,853],{"class":845},[768,1858,853],{"class":845},[768,1860,948],{"class":917},[768,1862,1863],{"class":770,"line":951},[768,1864,898],{"emptyLinePlaceholder":897},[768,1866,1867,1870,1872,1875,1878,1880,1883,1885],{"class":770,"line":956},[768,1868,1869],{"class":841},"  if",[768,1871,1183],{"class":917},[768,1873,1874],{"class":845},"!",[768,1876,1877],{"class":849},"body",[768,1879,744],{"class":845},[768,1881,1882],{"class":849},"paymentMethod",[768,1884,1189],{"class":917},[768,1886,911],{"class":845},[768,1888,1889,1891,1893,1895,1897,1899],{"class":770,"line":1006},[768,1890,1137],{"class":962},[768,1892,1216],{"class":849},[768,1894,1015],{"class":845},[768,1896,1749],{"class":904},[768,1898,908],{"class":917},[768,1900,911],{"class":845},[768,1902,1903,1906,1908,1912],{"class":770,"line":1036},[768,1904,1905],{"class":917},"      status",[768,1907,921],{"class":845},[768,1909,1911],{"class":1910},"sbssI"," 400",[768,1913,1072],{"class":845},[768,1915,1916,1919,1921,1923,1926,1928],{"class":770,"line":1041},[768,1917,1918],{"class":917},"      message",[768,1920,921],{"class":845},[768,1922,859],{"class":845},[768,1924,1925],{"class":777},"Missing payment method",[768,1927,936],{"class":845},[768,1929,1072],{"class":845},[768,1931,1932,1935,1937,1939,1942,1944],{"class":770,"line":1057},[768,1933,1934],{"class":917},"      why",[768,1936,921],{"class":845},[768,1938,859],{"class":845},[768,1940,1941],{"class":777},"No payment method was provided",[768,1943,936],{"class":845},[768,1945,1072],{"class":845},[768,1947,1948,1951,1953,1955,1958,1960],{"class":770,"line":1075},[768,1949,1950],{"class":917},"      fix",[768,1952,921],{"class":845},[768,1954,859],{"class":845},[768,1956,1957],{"class":777},"Include a paymentMethod field in the request body",[768,1959,936],{"class":845},[768,1961,1072],{"class":845},[768,1963,1964,1967],{"class":770,"line":1092},[768,1965,1966],{"class":845},"    }",[768,1968,948],{"class":917},[768,1970,1971,1974,1976,1978,1980,1982,1984,1986],{"class":770,"line":1100},[768,1972,1973],{"class":849},"    locals",[768,1975,744],{"class":845},[768,1977,1113],{"class":849},[768,1979,744],{"class":845},[768,1981,1186],{"class":904},[768,1983,908],{"class":917},[768,1985,1186],{"class":849},[768,1987,948],{"class":917},[768,1989,1990,1992,1995,1997,1999,2001,2003],{"class":770,"line":1105},[768,1991,1137],{"class":962},[768,1993,1994],{"class":849}," parsed",[768,1996,1015],{"class":845},[768,1998,1754],{"class":904},[768,2000,908],{"class":917},[768,2002,1186],{"class":849},[768,2004,948],{"class":917},[768,2006,2007,2009,2011,2013,2015,2017,2019,2021,2023,2026,2028,2030,2032,2035,2037,2039,2041,2044,2046],{"class":770,"line":1121},[768,2008,1169],{"class":841},[768,2010,1018],{"class":845},[768,2012,1600],{"class":904},[768,2014,908],{"class":917},[768,2016,1605],{"class":849},[768,2018,744],{"class":845},[768,2020,1610],{"class":904},[768,2022,908],{"class":917},[768,2024,2025],{"class":849},"parsed",[768,2027,997],{"class":917},[768,2029,878],{"class":845},[768,2031,846],{"class":845},[768,2033,2034],{"class":917}," status",[768,2036,921],{"class":845},[768,2038,1994],{"class":849},[768,2040,744],{"class":845},[768,2042,2043],{"class":849},"status",[768,2045,853],{"class":845},[768,2047,948],{"class":917},[768,2049,2050],{"class":770,"line":1126},[768,2051,1261],{"class":845},[768,2053,2054],{"class":770,"line":1134},[768,2055,898],{"emptyLinePlaceholder":897},[768,2057,2058,2060,2062,2064,2066,2068,2070,2072,2074,2076,2079,2081,2085,2087],{"class":770,"line":1153},[768,2059,1595],{"class":841},[768,2061,1018],{"class":845},[768,2063,1600],{"class":904},[768,2065,908],{"class":917},[768,2067,1605],{"class":849},[768,2069,744],{"class":845},[768,2071,1610],{"class":904},[768,2073,908],{"class":917},[768,2075,1474],{"class":845},[768,2077,2078],{"class":917}," success",[768,2080,921],{"class":845},[768,2082,2084],{"class":2083},"sfNiH"," true",[768,2086,853],{"class":845},[768,2088,2089],{"class":917},"))\n",[768,2091,2092],{"class":770,"line":1166},[768,2093,1380],{"class":845},[746,2095,547],{"id":2096},"configuration",[608,2098,2099,2100,2103,2104,2106],{},"See the ",[650,2101,2102],{"href":548},"Configuration reference"," for all available options (",[612,2105,905],{},", middleware options, sampling, silent mode, etc.).",[746,2108,2110],{"id":2109},"drain","Drain",[608,2112,2113,2114,2116],{},"Configure drain in ",[612,2115,905],{}," inside your middleware:",[758,2118,2120],{"className":831,"code":2119,"filename":833,"language":834,"meta":764,"style":764},"import { initLogger, createRequestLogger } from 'evlog'\nimport { createAxiomDrain } from 'evlog\u002Faxiom'\nimport { createDrainPipeline } from 'evlog\u002Fpipeline'\nimport type { DrainContext } from 'evlog'\n\nconst pipeline = createDrainPipeline\u003CDrainContext>({\n  batch: { size: 50, intervalMs: 5000 },\n})\nconst drain = pipeline(createAxiomDrain())\n\ninitLogger({\n  env: { service: 'my-astro-app' },\n  drain,\n})\n",[612,2121,2122,2144,2164,2184,2205,2209,2233,2262,2268,2288,2292,2300,2320,2327],{"__ignoreMap":764},[768,2123,2124,2126,2128,2130,2132,2134,2136,2138,2140,2142],{"class":770,"line":771},[768,2125,842],{"class":841},[768,2127,846],{"class":845},[768,2129,875],{"class":849},[768,2131,878],{"class":845},[768,2133,881],{"class":849},[768,2135,853],{"class":845},[768,2137,856],{"class":841},[768,2139,859],{"class":845},[768,2141,614],{"class":777},[768,2143,865],{"class":845},[768,2145,2146,2148,2150,2153,2155,2157,2159,2162],{"class":770,"line":868},[768,2147,842],{"class":841},[768,2149,846],{"class":845},[768,2151,2152],{"class":849}," 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