near-api-js 0.40.0

• Generated Error classes deleted (#570) ee975a1e
• Check cache for access key after network request (#567) 81e824e7
• use human readable near amounts in errors (#556) 4bce6665
• bump bn version number to 5.1.0 to match types (#551) b922eb5c
• Bump typedoc from 0.20.35 to 0.20.36 10f52bae
• Merge pull request #561 from near/fix/tx-status-string-and-buffer 27ca6cdd
• update types and docs 9847fbf2
• Merge pull request #555 from near/fix/node-fetch-only-in-node-build b2c633d9
• update txStatus to take a string or a buffer 3acc6ce3
• oops missing files 4a2fcc11
• Merge pull request #558 from near/exponential-backoff-fix 251f3c53
• fix bug in exponentialBackoff 1644d8e0
• Merge pull request #534 from near/feat/add-rpc-endpoints f8bfaef8
• fix linting d41f7116
• remove node-fetch added to global in node env 27425c88
• add Josh and Ryan as codeowners (#554) 1de4eed4
• Add stale PRs action to the workflow (#487) cdae1fb8
• Merge branch 'master' into feat/add-rpc-endpoints a127371b
• Improve TypeDoc by improving the layout and adding some comments (#541) 71920e06
• Merge pull request #548 from near/dependabot/npm_and_yarn/typedoc-0.20.35 55bf0121
• Bump typedoc from 0.19.2 to 0.20.35 8da7a929
• Merge pull request #533 from near/feat/json-rpc-query-types 6e36ba2c
• fix types merge conflict 5106954f
• compile 00faf5b0
• check access_key permission type is FullAccess aee985dc
• Merge pull request #528 from near/get-network-deleted fc54def0
• Merge pull request #527 from near/contract-does-not-exist-error 6b36722b
• lint fix c25ccbe0
• SignInOptions used instead of string accountId aa791076
• conflixts solved 2d60cf71
• fix conflicts 5052a95f
• update AccessKey type in Provider class 43cbb291
• change AccessKey => AccessKeyWithPublicKey 965d1415
• update comments 09076076
• fix linting errors ffe21afc
• typo 216d10f0
• added contractCodeChanges 98e3d010
• add contractStateChanges f7cbc0e8
• add accountChanges bacf0c27
• added singleAccessKeyChanges and AccessKey type 5246c07e
• add accessKeyChanges & ChangeResult type 4e9bb904
• add basic fetch block changes test 441cb167
• remove deprectated BlockId from BlockChanges d2ae7a89
• add BlockChanges method w/ types c5076c8c
• fix wallet tests; args are b64 c87b1e0e
• add rpc query request types c6961f54
• update BlockResult interface c5be4c1d
• add chunk interface 3f2cdd5d
• update BlockHeader inerface 12a3f4ab
• add query rpc types 611029a2
• add send tx async c89f7e57
• add tx status w/ reciept a403ce73
• yarn fix 906bcd63
• yarn fix a6b8d2b8
• test fix f456e114
• getNetwork deleted from Provider b37a44e5
• requestSignIn throws error if cintractId does not exist 260bc3cc

https://github.com/near/near-api-js/compare/v0.39.0...v0.40.0