diff --git a/Pipfile.lock b/Pipfile.lock
index b4b8ef0..a168cb9 100644
--- a/Pipfile.lock
+++ b/Pipfile.lock
@@ -19,7 +19,6 @@
                 "sha256:149e90d6d8ac20db7a955ad60cf0e6881a3f20d37096140088356da6c716b0b1",
                 "sha256:ef6aaac3ca6cd92904cdd0d83f629a15f18053ec84e6432106f7a4d04ae4f5fb"
             ],
-            "markers": "python_version >= '2.7' and python_version not in '3.0, 3.1, 3.2, 3.3, 3.4'",
             "version": "==21.2.0"
         },
         "jsonschema": {
@@ -34,7 +33,6 @@
             "hashes": [
                 "sha256:2e636185d9eb976a18a8a8e96efce62f2905fea90041958d8cc2a189756ebf3e"
             ],
-            "markers": "python_version >= '3.5'",
             "version": "==0.17.3"
         },
         "pyyaml": {
@@ -77,7 +75,6 @@
                 "sha256:1e61c37477a1626458e36f7b1d82aa5c9b094fa4802892072e49de9c60c4c926",
                 "sha256:8abb2f1d86890a2dfb989f9a77cfcfd3e47c2a354b01111771326f8aa26e0254"
             ],
-            "markers": "python_version >= '2.7' and python_version not in '3.0, 3.1, 3.2'",
             "version": "==1.16.0"
         }
     },
@@ -87,7 +84,6 @@
                 "sha256:37228cda29411948b422fae072f57e31d3396d2ee1c9783775980ee9c9990af6",
                 "sha256:58587dd4dc3daefad0487f6d9ae32b4542b185e1c36db6993290e7c41ca2b47c"
             ],
-            "markers": "python_version >= '2.7' and python_version not in '3.0, 3.1, 3.2, 3.3'",
             "version": "==1.5"
         },
         "appdirs": {
@@ -99,18 +95,16 @@
         },
         "astroid": {
             "hashes": [
-                "sha256:4db03ab5fc3340cf619dbc25e42c2cc3755154ce6009469766d7143d1fc2ee4e",
-                "sha256:8a398dfce302c13f14bab13e2b14fe385d32b73f4e4853b9bdfb64598baa1975"
+                "sha256:3c9a2d84354185d13213ff2640ec03d39168dbcd13648abc84fb13ca3b2e2761",
+                "sha256:d66a600e1602736a0f24f725a511b0e50d12eb18f54b31ec276d2c26a0a62c6a"
             ],
-            "markers": "python_version ~= '3.6'",
-            "version": "==2.5.6"
+            "version": "==2.5.7"
         },
         "attrs": {
             "hashes": [
                 "sha256:149e90d6d8ac20db7a955ad60cf0e6881a3f20d37096140088356da6c716b0b1",
                 "sha256:ef6aaac3ca6cd92904cdd0d83f629a15f18053ec84e6432106f7a4d04ae4f5fb"
             ],
-            "markers": "python_version >= '2.7' and python_version not in '3.0, 3.1, 3.2, 3.3, 3.4'",
             "version": "==21.2.0"
         },
         "black": {
@@ -136,17 +130,16 @@
         },
         "certifi": {
             "hashes": [
-                "sha256:1a4995114262bffbc2413b159f2a1a480c969de6e6eb13ee966d470af86af59c",
-                "sha256:719a74fb9e33b9bd44cc7f3a8d94bc35e4049deebe19ba7d8e108280cfd59830"
+                "sha256:2bbf76fd432960138b3ef6dda3dde0544f27cbf8546c458e60baf371917ba9ee",
+                "sha256:50b1e4f8446b06f41be7dd6338db18e0990601dce795c2b1686458aa7e8fa7d8"
             ],
-            "version": "==2020.12.5"
+            "version": "==2021.5.30"
         },
         "chardet": {
             "hashes": [
                 "sha256:0d6f53a15db4120f2b08c94f11e7d93d2c911ee118b6b30a04ec3ee8310179fa",
                 "sha256:f864054d66fd9118f2e67044ac8981a54775ec5b67aed0441892edb553d21da5"
             ],
-            "markers": "python_version >= '2.7' and python_version not in '3.0, 3.1, 3.2, 3.3, 3.4'",
             "version": "==4.0.0"
         },
         "click": {
@@ -154,7 +147,6 @@
                 "sha256:8c04c11192119b1ef78ea049e0a6f0463e4c48ef00a30160c704337586f3ad7a",
                 "sha256:fba402a4a47334742d782209a7c79bc448911afe1149d07bdabdf480b3e2f4b6"
             ],
-            "markers": "python_version >= '3.6'",
             "version": "==8.0.1"
         },
         "colorama": {
@@ -162,7 +154,6 @@
                 "sha256:5941b2b48a20143d2267e95b1c2a7603ce057ee39fd88e7329b0c292aa16869b",
                 "sha256:9f47eda37229f68eee03b24b9748937c7dc3868f906e8ba69fbcbdd3bc5dc3e2"
             ],
-            "markers": "python_version >= '2.7' and python_version not in '3.0, 3.1, 3.2, 3.3, 3.4'",
             "version": "==0.4.4"
         },
         "coverage": {
@@ -228,25 +219,23 @@
         },
         "distlib": {
             "hashes": [
-                "sha256:8c09de2c67b3e7deef7184574fc060ab8a793e7adbb183d942c389c8b13c52fb",
-                "sha256:edf6116872c863e1aa9d5bb7cb5e05a022c519a4594dc703843343a9ddd9bff1"
+                "sha256:106fef6dc37dd8c0e2c0a60d3fca3e77460a48907f335fa28420463a6f799736",
+                "sha256:23e223426b28491b1ced97dc3bbe183027419dfc7982b4fa2f05d5f3ff10711c"
             ],
-            "version": "==0.3.1"
+            "version": "==0.3.2"
         },
         "execnet": {
             "hashes": [
-                "sha256:7a13113028b1e1cc4c6492b28098b3c6576c9dccc7973bfe47b342afadafb2ac",
-                "sha256:b73c5565e517f24b62dea8a5ceac178c661c4309d3aa0c3e420856c072c411b4"
+                "sha256:7e3c2cdb6389542a91e9855a9cc7545fbed679e96f8808bcbb1beb325345b189",
+                "sha256:e840ce25562e414ee5684864d510dbeeb0bce016bc89b22a6e5ce323b5e6552f"
             ],
-            "markers": "python_version >= '2.7' and python_version not in '3.0, 3.1, 3.2, 3.3, 3.4'",
-            "version": "==1.8.0"
+            "version": "==1.8.1"
         },
         "idna": {
             "hashes": [
                 "sha256:b307872f855b18632ce0c21c5e45be78c0ea7ae4c15c828c20788b26921eb3f6",
                 "sha256:b97d804b1e9b523befed77c48dacec60e6dcb0b5391d57af6a65a312a90648c0"
             ],
-            "markers": "python_version >= '2.7' and python_version not in '3.0, 3.1, 3.2, 3.3'",
             "version": "==2.10"
         },
         "iniconfig": {
@@ -261,7 +250,6 @@
                 "sha256:0a943902919f65c5684ac4e0154b1ad4fac6dcaa5d9f3426b732f1c8b5419be6",
                 "sha256:2bb1680aad211e3c9944dbce1d4ba09a989f04e238296c87fe2139faa26d655d"
             ],
-            "markers": "python_version >= '3.6' and python_version < '4'",
             "version": "==5.8.0"
         },
         "lazy-object-proxy": {
@@ -289,7 +277,6 @@
                 "sha256:ed361bb83436f117f9917d282a456f9e5009ea12fd6de8742d1a4752c3017e93",
                 "sha256:f5144c75445ae3ca2057faac03fda5a902eff196702b0a24daf1d6ce0650514b"
             ],
-            "markers": "python_version >= '2.7' and python_version not in '3.0, 3.1, 3.2, 3.3, 3.4, 3.5'",
             "version": "==1.6.0"
         },
         "mccabe": {
@@ -311,7 +298,6 @@
                 "sha256:5b327ac1320dc863dca72f4514ecc086f31186744b84a230374cc1fd776feae5",
                 "sha256:67714da7f7bc052e064859c05c595155bd1ee9f69f76557e21f051443c20947a"
             ],
-            "markers": "python_version >= '2.7' and python_version not in '3.0, 3.1, 3.2, 3.3'",
             "version": "==20.9"
         },
         "pathspec": {
@@ -340,7 +326,6 @@
                 "sha256:05b00ade9d1e686a98bb656dd9b0608a933897283dc21913fad6ea5409ff7e91",
                 "sha256:16ca9f87485667b16b978b68a1aae4f9cc082c0fa018aed28567f9f34a590569"
             ],
-            "markers": "python_version >= '2.7' and python_version not in '3.0, 3.1, 3.2, 3.3, 3.4'",
             "version": "==0.5.3"
         },
         "pipenv-setup": {
@@ -365,7 +350,6 @@
                 "sha256:46402c03e36d6eadddad2a5125990e322dd74f98160c8f2dcd832b2291858a26",
                 "sha256:d6c9b96981b347bddd333910b753b6091a2c1eb2ef85bb373b4a67c9d91dca16"
             ],
-            "markers": "python_version >= '2.6' and python_version not in '3.0, 3.1, 3.2, 3.3'",
             "version": "==0.2.3"
         },
         "pluggy": {
@@ -373,7 +357,6 @@
                 "sha256:15b2acde666561e1298d71b523007ed7364de07029219b604cf808bfa1c765b0",
                 "sha256:966c145cd83c96502c3c3868f50408687b38434af77734af1e9ca461a4081d2d"
             ],
-            "markers": "python_version >= '2.7' and python_version not in '3.0, 3.1, 3.2, 3.3'",
             "version": "==0.13.1"
         },
         "py": {
@@ -381,7 +364,6 @@
                 "sha256:21b81bda15b66ef5e1a777a21c4dcd9c20ad3efd0b3f817e7a809035269e1bd3",
                 "sha256:3b80836aa6d1feeaa108e046da6423ab8f6ceda6468545ae8d02d9d58d18818a"
             ],
-            "markers": "python_version >= '2.7' and python_version not in '3.0, 3.1, 3.2, 3.3'",
             "version": "==1.10.0"
         },
         "pylint": {
@@ -397,7 +379,6 @@
                 "sha256:c203ec8783bf771a155b207279b9bccb8dea02d8f0c9e5f8ead507bc3246ecc1",
                 "sha256:ef9d7589ef3c200abe66653d3f1ab1033c3c419ae9b9bdb1240a85b024efc88b"
             ],
-            "markers": "python_version >= '2.6' and python_version not in '3.0, 3.1, 3.2'",
             "version": "==2.4.7"
         },
         "pytest": {
@@ -450,7 +431,6 @@
                 "sha256:73ebfe9dbf22e832286dafa60473e4cd239f8592f699aa5adaf10050e6e1823c",
                 "sha256:75bb3f31ea686f1197762692a9ee6a7550b59fc6ca3a1f4b5d7e32fb98e2da2a"
             ],
-            "markers": "python_version >= '2.7' and python_version not in '3.0, 3.1, 3.2'",
             "version": "==2.8.1"
         },
         "regex": {
@@ -504,7 +484,6 @@
                 "sha256:27973dd4a904a4f13b263a19c866c13b92a39ed1c964655f025f3f8d3d75b804",
                 "sha256:c210084e36a42ae6b9219e00e48287def368a26d03a048ddad7bfee44f75871e"
             ],
-            "markers": "python_version >= '2.7' and python_version not in '3.0, 3.1, 3.2, 3.3, 3.4'",
             "version": "==2.25.1"
         },
         "requirementslib": {
@@ -512,7 +491,6 @@
                 "sha256:50d20f27e4515a2393695b0d886219598302163438ae054253147b2bad9b4a44",
                 "sha256:9c1e8666ca4512724cdd1739adcc7df19ec7ad2ed21f0e748f9631ad6b54f321"
             ],
-            "markers": "python_version >= '2.7' and python_version not in '3.0, 3.1, 3.2, 3.3, 3.4'",
             "version": "==1.5.16"
         },
         "six": {
@@ -520,7 +498,6 @@
                 "sha256:1e61c37477a1626458e36f7b1d82aa5c9b094fa4802892072e49de9c60c4c926",
                 "sha256:8abb2f1d86890a2dfb989f9a77cfcfd3e47c2a354b01111771326f8aa26e0254"
             ],
-            "markers": "python_version >= '2.7' and python_version not in '3.0, 3.1, 3.2'",
             "version": "==1.16.0"
         },
         "toml": {
@@ -532,11 +509,10 @@
         },
         "tomlkit": {
             "hashes": [
-                "sha256:01227863019024861bb83d9a09a757b1c65604969fd2cebb19f5e2b340649792",
-                "sha256:24d6049e0765aad9c56a30dfa60d54c69f39c142112a6c57ce8f1c285b6b9d8f"
+                "sha256:173ad840fa5d2aac140528ca1933c29791b79a374a0861a80347f42ec9328117",
+                "sha256:d7a454f319a7e9bd2e249f239168729327e4dd2d27b17dc68be264ad1ce36754"
             ],
-            "markers": "python_version >= '2.7' and python_version not in '3.0, 3.1, 3.2, 3.3, 3.4'",
-            "version": "==0.7.1"
+            "version": "==0.7.2"
         },
         "typed-ast": {
             "hashes": [
@@ -575,18 +551,17 @@
         },
         "urllib3": {
             "hashes": [
-                "sha256:2f4da4594db7e1e110a944bb1b551fdf4e6c136ad42e4234131391e21eb5b0df",
-                "sha256:e7b021f7241115872f92f43c6508082facffbd1c048e3c6e2bb9c2a157e28937"
+                "sha256:753a0374df26658f99d826cfe40394a686d05985786d946fbe4165b5148f5a7c",
+                "sha256:a7acd0977125325f516bda9735fa7142b909a8d01e8b2e4c8108d0984e6e0098"
             ],
-            "markers": "python_version >= '2.7' and python_version not in '3.0, 3.1, 3.2, 3.3, 3.4' and python_version < '4'",
-            "version": "==1.26.4"
+            "index": "pypi",
+            "version": "==1.26.5"
         },
         "vistir": {
             "hashes": [
                 "sha256:a37079cdbd85d31a41cdd18457fe521e15ec08b255811e81aa061fd5f48a20fb",
                 "sha256:eff1d19ef50c703a329ed294e5ec0b0fbb35b96c1b3ee6dcdb266dddbe1e935a"
             ],
-            "markers": "python_version >= '2.7' and python_version not in '3.0, 3.1, 3.2, 3.3'",
             "version": "==0.5.2"
         },
         "wheel": {
@@ -594,7 +569,6 @@
                 "sha256:78b5b185f0e5763c26ca1e324373aadd49182ca90e825f7853f4b2509215dc0e",
                 "sha256:e11eefd162658ea59a60a0f6c7d493a7190ea4b9a85e335b33489d9f17e0245e"
             ],
-            "markers": "python_version >= '2.7' and python_version not in '3.0, 3.1, 3.2, 3.3, 3.4'",
             "version": "==0.36.2"
         },
         "wrapt": {