Add typings #528

Job	Run time	Billable time
test-postgres (9.5)	3m 30s	0s
test-postgres (9.6)	3m 16s	0s
test-platforms (3.8, ubuntu-latest, asyncio)	2m 6s	0s
test-postgres (10)	2m 29s	0s
test-platforms (3.8, ubuntu-latest, uvloop)	2m 5s	0s
test-platforms (3.8, macos-latest, asyncio)	2m 40s	0s
test-platforms (3.8, macos-latest, uvloop)	2m 36s	0s
test-postgres (11)	2m 14s	0s
test-platforms (3.8, windows-latest, asyncio)	5m 31s	0s
test-postgres (12)	2m 38s	0s
test-platforms (3.9, ubuntu-latest, asyncio)	2m 4s	0s
test-platforms (3.9, ubuntu-latest, uvloop)	2m 1s	0s
test-postgres (13)	2m 48s	0s
test-postgres (14)	2m 28s	0s
test-platforms (3.9, macos-latest, asyncio)	2m 11s	0s
test-platforms (3.9, macos-latest, uvloop)	2m 10s	0s
test-postgres (15)	2m 39s	0s
test-postgres (16)	2m 37s	0s
test-platforms (3.9, windows-latest, asyncio)	4m 43s	0s
test-platforms (3.10, ubuntu-latest, asyncio)	2m 0s	0s
test-platforms (3.10, ubuntu-latest, uvloop)	2m 0s	0s
test-platforms (3.10, macos-latest, asyncio)	2m 51s	0s
test-platforms (3.10, macos-latest, uvloop)	2m 49s	0s
test-platforms (3.10, windows-latest, asyncio)	5m 42s	0s
test-platforms (3.11, ubuntu-latest, asyncio)	1m 57s	0s
test-platforms (3.11, ubuntu-latest, uvloop)	1m 57s	0s
test-platforms (3.11, macos-latest, asyncio)	3m 8s	0s
test-platforms (3.11, macos-latest, uvloop)	3m 30s	0s
test-platforms (3.11, windows-latest, asyncio)	5m 14s	0s
test-platforms (3.12, ubuntu-latest, asyncio)	2m 26s	0s
test-platforms (3.12, macos-latest, asyncio)	3m 42s	0s
test-platforms (3.12, windows-latest, asyncio)	5m 41s	0s
Regression Tests	0s	0s
	1h 35m 43s	0s

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