diff --git a/poetry.lock b/poetry.lock
index 08c1083..2fe7f48 100644
--- a/poetry.lock
+++ b/poetry.lock
@@ -50,16 +50,20 @@ description = "An abstract syntax tree for Python with inference support."
 name = "astroid"
 optional = false
 python-versions = ">=3.4.*"
-version = "2.1.0"
+version = "2.2.0"
 
 [package.dependencies]
 lazy-object-proxy = "*"
 six = "*"
 wrapt = "*"
 
-[package.dependencies.typed-ast]
+[[package.dependencies.typed-ast]]
 python = "<3.7"
-version = "*"
+version = "<1.3.0"
+
+[[package.dependencies.typed-ast]]
+python = ">=3.7"
+version = ">=1.3.0"
 
 [[package]]
 category = "main"
@@ -265,10 +269,10 @@ description = "python code static checker"
 name = "pylint"
 optional = false
 python-versions = ">=3.4.*"
-version = "2.2.2"
+version = "2.3.0"
 
 [package.dependencies]
-astroid = ">=2.0.0"
+astroid = ">=2.2.0"
 colorama = "*"
 isort = ">=4.2.5"
 mccabe = "*"
@@ -331,6 +335,15 @@ marker = "python_version < \"3.7\" and implementation_name == \"cpython\""
 name = "typed-ast"
 optional = false
 python-versions = "*"
+version = "1.2.0"
+
+[[package]]
+category = "dev"
+description = "a fork of Python 2 and 3 ast modules with type comment support"
+marker = "python_version >= \"3.7\" and implementation_name == \"cpython\""
+name = "typed-ast"
+optional = false
+python-versions = "*"
 version = "1.3.1"
 
 [[package]]
@@ -390,14 +403,14 @@ python-versions = ">=2.7"
 version = "0.3.3"
 
 [metadata]
-content-hash = "694b54b6c5aca793f427ce78b8c42820a74ec656ee92ba54aa74b0480ca078ba"
+content-hash = "acb50bf9ff3d4bc9f22f05d8e97fd65b201828e3fa53cc1bc2d1323455f33647"
 python-versions = ">=3.6"
 
 [metadata.hashes]
 aiodns = ["970688599fcb7d65334ec490a94a51afd634ae2de8a2138d21e2ffbbddc12718", "d67e14b32176bcf3ff79b5d47c466011ce4adeadfa264f7949da1377332a0449"]
 aiohttp = ["00d198585474299c9c3b4f1d5de1a576cc230d562abc5e4a0e81d71a20a6ca55", "0155af66de8c21b8dba4992aaeeabf55503caefae00067a3b1139f86d0ec50ed", "09654a9eca62d1bd6d64aa44db2498f60a5c1e0ac4750953fdd79d5c88955e10", "199f1d106e2b44b6dacdf6f9245493c7d716b01d0b7fbe1959318ba4dc64d1f5", "296f30dedc9f4b9e7a301e5cc963012264112d78a1d3094cd83ef148fdf33ca1", "368ed312550bd663ce84dc4b032a962fcb3c7cae099dbbd48663afc305e3b939", "40d7ea570b88db017c51392349cf99b7aefaaddd19d2c78368aeb0bddde9d390", "629102a193162e37102c50713e2e31dc9a2fe7ac5e481da83e5bb3c0cee700aa", "6d5ec9b8948c3d957e75ea14d41e9330e1ac3fed24ec53766c780f82805140dc", "87331d1d6810214085a50749160196391a712a13336cd02ce1c3ea3d05bcf8d5", "9a02a04bbe581c8605ac423ba3a74999ec9d8bce7ae37977a3d38680f5780b6d", "9c4c83f4fa1938377da32bc2d59379025ceeee8e24b89f72fcbccd8ca22dc9bf", "9cddaff94c0135ee627213ac6ca6d05724bfe6e7a356e5e09ec57bd3249510f6", "a25237abf327530d9561ef751eef9511ab56fd9431023ca6f4803f1994104d72", "a5cbd7157b0e383738b8e29d6e556fde8726823dae0e348952a61742b21aeb12", "a97a516e02b726e089cffcde2eea0d3258450389bbac48cbe89e0f0b6e7b0366", "acc89b29b5f4e2332d65cd1b7d10c609a75b88ef8925d487a611ca788432dfa4", "b05bd85cc99b06740aad3629c2585bda7b83bd86e080b44ba47faf905fdf1300", "c2bec436a2b5dafe5eaeb297c03711074d46b6eb236d002c13c42f25c4a8ce9d", "cc619d974c8c11fe84527e4b5e1c07238799a8c29ea1c1285149170524ba9303", "d4392defd4648badaa42b3e101080ae3313e8f4787cb517efd3f5b8157eaefd6", "e1c3c582ee11af7f63a34a46f0448fca58e59889396ffdae1f482085061a2889"]
 "aspy.yaml" = ["19dd2ee74f96b72a3096d78be1a872914c70982299cda137725478954870a896", "5eaaacd0886e8b581f0e4ff383fb6504720bb2b3c7be17307724246261a41adf"]
-astroid = ["35b032003d6a863f5dcd7ec11abd5cd5893428beaa31ab164982403bcb311f22", "6a5d668d7dc69110de01cdf7aeec69a679ef486862a0850cc0fd5571505b6b7e"]
+astroid = ["1d5d0e6e408701ae657342645465d08be6fb66cf0ede16a31cc6435bd2e61718", "8fc40235cd184bff5d7b8e1284a647005cbd36bbc87d0c39f6f6389ae26e17ad"]
 async-timeout = ["0c3c816a028d47f659d6ff5c745cb2acf1f966da1fe5c19c77a70282b25f4c5f", "4291ca197d287d274d0b6cb5d6f8f8f82d434ed288f962539ff18cc9012f9ea3"]
 attrs = ["10cbf6e27dbce8c30807caf056c8eb50917e0eaafe86347671b57254006c3e69", "ca4be454458f9dec299268d472aaa5a11f67a4ff70093396e1ceae9c76cf4bbb"]
 beautifulsoup4 = ["034740f6cb549b4e932ae1ab975581e6103ac8f942200a0e9759065984391858", "945065979fb8529dd2f37dbb58f00b661bdbcbebf954f93b32fdf5263ef35348", "ba6d5c59906a85ac23dadfe5c88deaf3e179ef565f4898671253e50a78680718"]
@@ -419,14 +432,14 @@ multidict = ["024b8129695a952ebd93373e45b5d341dbb87c17ce49637b34000093f243dd4f",
 nodeenv = ["ad8259494cf1c9034539f6cced78a1da4840a4b157e23640bc4a0c0546b0cb7a"]
 pre-commit = ["d3d69c63ae7b7584c4b51446b0b583d454548f9df92575b2fe93a68ec800c4d3", "fc512f129b9526e35e80d656a16a31c198f584c4fce3a5c739045b5140584917"]
 pycares = ["080ae0f1b1b754be60b6ef31b9ab2915364c210eb1cb4d8e089357c89d7b9819", "0eccb76dff0155ddf793a589c6270e1bdbf6975b2824d18d1d23db2075d7fc96", "223a03d69e864a18d7bb2e0108bca5ba069ef91e5b048b953ed90ea9f50eb77f", "289e49f98adfd7a2ae3656df26e1d62cf49a06bbc03ced63f243c22cd8919adf", "292ac442a1d4ff27d41be748ec19f0c4ff47efebfb715064ba336564ea0f2071", "34771095123da0e54597fe3c5585a28d3799945257e51b378a20778bf33573b6", "34c8865f2d047be4c301ce90a916c7748be597e271c5c7932e8b9a6de85840f4", "36af260b215f86ebfe4a5e4aea82fd6036168a5710cbf8aad77019ab52156dda", "5e8e2a461717da40482b5fecf1119116234922d29660b3c3e01cbc5ba2cbf4bd", "61e77bd75542c56dff49434fedbafb25604997bc57dc0ebf791a5732503cb1bb", "691740c332f38a9035b4c6d1f0e6c8af239466ef2373a894d4393f0ea65c815d", "6bc0e0fdcb4cdc4ca06aa0b07e6e3560d62b2af79ef0ea4589835fcd2059012b", "96db5c93e2fe2e39f519efb7bb9d86aef56f5813fa0b032e47aba329fa925d57", "af701b22c91b3e36f65ee9f4b1bc2fe4800c8ed486eb6ef203624acbe53d026d", "b25bd21bba9c43d44320b719118c2ce35e4a78031f61d906caeb01316d49dafb", "c42f68319f8ea2322ed81c31a86c4e60547e6e90f3ebef479a7a7540bddbf268", "cc9a8d35af12bc5f484f3496f9cb3ab5bedfa4dcf3dfff953099453d88b659a7", "dfee9d198ba6d6f29aa5bf510bfb2c28a60c3f308116f114c9fd311980d3e870", "e1dd02e110a7a97582097ebba6713d9da28583b538c08e8a14bc82169c5d3e10", "e48c586c80a139c6c7fb0298b944d1c40752cf839bc8584cc793e42a8971ba6c", "f509762dec1a70eac32b86c098f37ac9c5d3d4a8a9098983328377c9e71543b2", "f8e0d61733843844f9019c911d5676818d99c4cd2c54b91de58384c7d962862b", "fe20280fed496deba60e0f6437b7672bdc83bf45e243bb546af47c60c85bcfbc"]
-pylint = ["689de29ae747642ab230c6d37be2b969bf75663176658851f456619aacf27492", "771467c434d0d9f081741fec1d64dfb011ed26e65e12a28fe06ca2f61c4d556c"]
+pylint = ["2bf4bd58d6d5d87174fbc9d1d134a9aeee852d4dc29cbd422a7015772770bc63", "ee80c7af4f127b2a480d83010c9f0e97beb8eaa652b78c2837d3ed30b12e1182"]
 python-dateutil = ["7e6584c74aeed623791615e26efd690f29817a27c73085b78e4bad02493df2fb", "c89805f6f4d64db21ed966fda138f8a5ed7a4fdbc1a8ee329ce1b74e3c74da9e"]
 pyyaml = ["b21fadf0e343c3738cc956be9d24ee7a83d3260ff1a6805f860b4f5d4645b7b9"]
 simplejson = ["067a7177ddfa32e1483ba5169ebea1bc2ea27f224853211ca669325648ca5642", "2b8cb601d9ba0381499db719ccc9dfbb2fbd16013f5ff096b1a68a4775576a04", "2c139daf167b96f21542248f8e0a06596c9b9a7a41c162cc5c9ee9f3833c93cd", "2fc546e6af49fb45b93bbe878dea4c48edc34083729c0abd09981fe55bdf7f91", "354fa32b02885e6dae925f1b5bbf842c333c1e11ea5453ddd67309dc31fdb40a", "37e685986cf6f8144607f90340cff72d36acf654f3653a6c47b84c5c38d00df7", "3af610ee72efbe644e19d5eaad575c73fb83026192114e5f6719f4901097fce2", "3b919fc9cf508f13b929a9b274c40786036b31ad28657819b3b9ba44ba651f50", "3dd289368bbd064974d9a5961101f080e939cbe051e6689a193c99fb6e9ac89b", "491de7acc423e871a814500eb2dcea8aa66c4a4b1b4825d18f756cdf58e370cb", "495511fe5f10ccf4e3ed4fc0c48318f533654db6c47ecbc970b4ed215c791968", "65b41a5cda006cfa7c66eabbcf96aa704a6be2a5856095b9e2fd8c293bad2b46", "6c3258ffff58712818a233b9737fe4be943d306c40cf63d14ddc82ba563f483a", "75e3f0b12c28945c08f54350d91e624f8dd580ab74fd4f1bbea54bc6b0165610", "79b129fe65fdf3765440f7a73edaffc89ae9e7885d4e2adafe6aa37913a00fbb", "b1f329139ba647a9548aa05fb95d046b4a677643070dc2afc05fa2e975d09ca5", "c206f47cbf9f32b573c9885f0ec813d2622976cf5effcf7e472344bc2e020ac1", "d8e238f20bcf70063ee8691d4a72162bcec1f4c38f83c93e6851e72ad545dabb", "ee9625fc8ee164902dfbb0ff932b26df112da9f871c32f0f9c1bcf20c350fe2a", "fb2530b53c28f0d4d84990e945c2ebb470edb469d63e389bf02ff409012fe7c5", "feadb95170e45f439455354904768608e356c5b174ca30b3d11b0e3f24b5c0df"]
 six = ["3350809f0555b11f552448330d0b52d5f24c91a322ea4a15ef22629740f3761c", "d16a0141ec1a18405cd4ce8b4613101da75da0e9a7aec5bdd4fa804d0e0eba73"]
 soupsieve = ["afa56bf14907bb09403e5d15fbed6275caa4174d36b975226e3b67a3bb6e2c4b", "eaed742b48b1f3e2d45ba6f79401b2ed5dc33b2123dfe216adb90d4bfa0ade26"]
 toml = ["229f81c57791a41d65e399fc06bf0848bab550a9dfd5ed66df18ce5f05e73d5c", "235682dd292d5899d361a811df37e04a8828a5b1da3115886b73cf81ebc9100e", "f1db651f9657708513243e61e6cc67d101a39bad662eaa9b5546f789338e07a3"]
-typed-ast = ["035a54ede6ce1380599b2ce57844c6554666522e376bd111eb940fbc7c3dad23", "037c35f2741ce3a9ac0d55abfcd119133cbd821fffa4461397718287092d9d15", "049feae7e9f180b64efacbdc36b3af64a00393a47be22fa9cb6794e68d4e73d3", "19228f7940beafc1ba21a6e8e070e0b0bfd1457902a3a81709762b8b9039b88d", "2ea681e91e3550a30c2265d2916f40a5f5d89b59469a20f3bad7d07adee0f7a6", "3a6b0a78af298d82323660df5497bcea0f0a4a25a0b003afd0ce5af049bd1f60", "5385da8f3b801014504df0852bf83524599df890387a3c2b17b7caa3d78b1773", "606d8afa07eef77280c2bf84335e24390055b478392e1975f96286d99d0cb424", "69245b5b23bbf7fb242c9f8f08493e9ecd7711f063259aefffaeb90595d62287", "6f6d839ab09830d59b7fa8fb6917023d8cb5498ee1f1dbd82d37db78eb76bc99", "730888475f5ac0e37c1de4bd05eeb799fdb742697867f524dc8a4cd74bcecc23", "9819b5162ffc121b9e334923c685b0d0826154e41dfe70b2ede2ce29034c71d8", "9e60ef9426efab601dd9aa120e4ff560f4461cf8442e9c0a2b92548d52800699", "af5fbdde0690c7da68e841d7fc2632345d570768ea7406a9434446d7b33b0ee1", "b64efdbdf3bbb1377562c179f167f3bf301251411eb5ac77dec6b7d32bcda463", "bac5f444c118aeb456fac1b0b5d14c6a71ea2a42069b09c176f75e9bd4c186f6", "bda9068aafb73859491e13b99b682bd299c1b5fd50644d697533775828a28ee0", "d659517ca116e6750101a1326107d3479028c5191f0ecee3c7203c50f5b915b0", "eddd3fb1f3e0f82e5915a899285a39ee34ce18fd25d89582bc89fc9fb16cd2c6"]
+typed-ast = ["023625bfa9359e29bd6e24cac2a4503495b49761d48a5f1e38333fc4ac4d93fe", "07591f7a5fdff50e2e566c4c1e9df545c75d21e27d98d18cb405727ed0ef329c", "153e526b0f4ffbfada72d0bb5ffe8574ba02803d2f3a9c605c8cf99dfedd72a2", "3ad2bdcd46a4a1518d7376e9f5016d17718a9ed3c6a3f09203d832f6c165de4a", "3ea98c84df53ada97ee1c5159bb3bc784bd734231235a1ede14c8ae0775049f7", "51a7141ccd076fa561af107cfb7a8b6d06a008d92451a1ac7e73149d18e9a827", "52c93cd10e6c24e7ac97e8615da9f224fd75c61770515cb323316c30830ddb33", "6344c84baeda3d7b33e157f0b292e4dd53d05ddb57a63f738178c01cac4635c9", "64699ca1b3bd5070bdeb043e6d43bc1d0cebe08008548f4a6bee782b0ecce032", "74903f2e56bbffe29282ef8a5487d207d10be0f8513b41aff787d954a4cf91c9", "7891710dba83c29ee2bd51ecaa82f60f6bede40271af781110c08be134207bf2", "91976c56224e26c256a0de0f76d2004ab885a29423737684b4f7ebdd2f46dde2", "9bad678a576ecc71f25eba9f1e3fd8d01c28c12a2834850b458428b3e855f062", "b4726339a4c180a8b6ad9d8b50d2b6dc247e1b79b38fe2290549c98e82e4fd15", "ba36f6aa3f8933edf94ea35826daf92cbb3ec248b89eccdc053d4a815d285357", "bbc96bde544fd19e9ef168e4dfa5c3dfe704bfa78128fa76f361d64d6b0f731a", "c0c927f1e44469056f7f2dada266c79b577da378bbde3f6d2ada726d131e4824", "c0f9a3708008aa59f560fa1bd22385e05b79b8e38e0721a15a8402b089243442", "f0bf6f36ff9c5643004171f11d2fdc745aa3953c5aacf2536a0685db9ceb3fb1", "f5be39a0146be663cbf210a4d95c3c58b2d7df7b043c9047c5448e358f0550a2", "fcd198bf19d9213e5cbf2cde2b9ef20a9856e716f76f9476157f90ae6de06cc6", "035a54ede6ce1380599b2ce57844c6554666522e376bd111eb940fbc7c3dad23", "037c35f2741ce3a9ac0d55abfcd119133cbd821fffa4461397718287092d9d15", "049feae7e9f180b64efacbdc36b3af64a00393a47be22fa9cb6794e68d4e73d3", "19228f7940beafc1ba21a6e8e070e0b0bfd1457902a3a81709762b8b9039b88d", "2ea681e91e3550a30c2265d2916f40a5f5d89b59469a20f3bad7d07adee0f7a6", "3a6b0a78af298d82323660df5497bcea0f0a4a25a0b003afd0ce5af049bd1f60", "5385da8f3b801014504df0852bf83524599df890387a3c2b17b7caa3d78b1773", "606d8afa07eef77280c2bf84335e24390055b478392e1975f96286d99d0cb424", "69245b5b23bbf7fb242c9f8f08493e9ecd7711f063259aefffaeb90595d62287", "6f6d839ab09830d59b7fa8fb6917023d8cb5498ee1f1dbd82d37db78eb76bc99", "730888475f5ac0e37c1de4bd05eeb799fdb742697867f524dc8a4cd74bcecc23", "9819b5162ffc121b9e334923c685b0d0826154e41dfe70b2ede2ce29034c71d8", "9e60ef9426efab601dd9aa120e4ff560f4461cf8442e9c0a2b92548d52800699", "af5fbdde0690c7da68e841d7fc2632345d570768ea7406a9434446d7b33b0ee1", "b64efdbdf3bbb1377562c179f167f3bf301251411eb5ac77dec6b7d32bcda463", "bac5f444c118aeb456fac1b0b5d14c6a71ea2a42069b09c176f75e9bd4c186f6", "bda9068aafb73859491e13b99b682bd299c1b5fd50644d697533775828a28ee0", "d659517ca116e6750101a1326107d3479028c5191f0ecee3c7203c50f5b915b0", "eddd3fb1f3e0f82e5915a899285a39ee34ce18fd25d89582bc89fc9fb16cd2c6"]
 typing = ["4027c5f6127a6267a435201981ba156de91ad0d1d98e9ddc2aa173453453492d", "57dcf675a99b74d64dacf6fba08fb17cf7e3d5fdff53d4a30ea2a5e7e52543d4", "a4c8473ce11a65999c8f59cb093e70686b6c84c98df58c1dae9b3b196089858a"]
 typing-extensions = ["07b2c978670896022a43c4b915df8958bec4a6b84add7f2c87b2b728bda3ba64", "f3f0e67e1d42de47b5c67c32c9b26641642e9170fe7e292991793705cd5fef7c", "fb2cd053238d33a8ec939190f30cfd736c00653a85a2919415cecf7dc3d9da71"]
 virtualenv = ["5a3ecdfbde67a4a3b3111301c4d64a5b71cf862c8c42958d30cf3253df1f29dd", "dffd40d19ab0168c02cf936de59590a3c0f2c8c4a36f363fcf3dae18728dc94e"]
diff --git a/pyproject.toml b/pyproject.toml
index 1cb3813..4a906e9 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -35,6 +35,6 @@ simplejson = "^3.16"
 marshmallow = {version = "^2.16",allows-prereleases = true}
 
 [tool.poetry.dev-dependencies]
-pylint = "^2.1"
+pylint = "^2.3"
 pre-commit = "^1.14"
 pyyaml = {version = "^5.1b1", allows-prereleases = true}
\ No newline at end of file