diff --git a/Pipfile.lock b/Pipfile.lock
index 70c048b..237126b 100644
--- a/Pipfile.lock
+++ b/Pipfile.lock
@@ -61,16 +61,18 @@
         },
         "astroid": {
             "hashes": [
-                "sha256:7b963d1c590d490f60d2973e57437115978d3a2529843f160b5003b721e1e925",
-                "sha256:83e494b02d75d07d4e347b27c066fd791c0c74fc96c613d1ea3de0c82c48168f"
+                "sha256:3975a0bd5373bdce166e60c851cfcbaf21ee96de80ec518c1f4cb3e94c3fb334",
+                "sha256:ab7f36e8a78b8e54a62028ba6beef7561db4cdb6f2a5009ecc44a6f42b5697ef"
             ],
-            "version": "==2.6.5"
+            "markers": "python_version ~= '3.6'",
+            "version": "==2.6.6"
         },
         "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": {
@@ -86,6 +88,7 @@
                 "sha256:8c04c11192119b1ef78ea049e0a6f0463e4c48ef00a30160c704337586f3ad7a",
                 "sha256:fba402a4a47334742d782209a7c79bc448911afe1149d07bdabdf480b3e2f4b6"
             ],
+            "markers": "python_version >= '3.6'",
             "version": "==8.0.1"
         },
         "coverage": {
@@ -143,15 +146,16 @@
                 "sha256:f0b278ce10936db1a37e6954e15a3730bea96a0997c26d7fee88e6c396c2086d",
                 "sha256:f11642dddbb0253cc8853254301b51390ba0081750a8ac03f20ea8103f0c56b6"
             ],
+            "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": "==5.5"
         },
         "importlib-metadata": {
             "hashes": [
-                "sha256:079ada16b7fc30dfbb5d13399a5113110dab1aa7c2bc62f66af75f0b717c8cac",
-                "sha256:9f55f560e116f8643ecf2922d9cd3e1c7e8d52e683178fecd9d08f6aa357e11e"
+                "sha256:b618b6d2d5ffa2f16add5697cf57a46c76a56229b0ed1c438322e4e95645bd15",
+                "sha256:f284b3e11256ad1e5d03ab86bb2ccd6f5339688ff17a4d797a0fe7df326f23b1"
             ],
             "markers": "python_version < '3.8'",
-            "version": "==4.6.1"
+            "version": "==4.8.1"
         },
         "iniconfig": {
             "hashes": [
@@ -162,10 +166,11 @@
         },
         "isort": {
             "hashes": [
-                "sha256:eed17b53c3e7912425579853d078a0832820f023191561fcee9d7cae424e0813",
-                "sha256:f65ce5bd4cbc6abdfbe29afc2f0245538ab358c14590912df638033f157d555e"
+                "sha256:9c2ea1e62d871267b78307fe511c0838ba0da28698c5732d54e2790bf3ba9899",
+                "sha256:e17d6e2b81095c9db0a03a8025a957f334d6ea30b26f9ec70805411e5c7c81f2"
             ],
-            "version": "==5.9.2"
+            "markers": "python_version < '4' and python_full_version >= '3.6.1'",
+            "version": "==5.9.3"
         },
         "lazy-object-proxy": {
             "hashes": [
@@ -192,6 +197,7 @@
                 "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": {
@@ -206,20 +212,23 @@
                 "sha256:7dc96269f53a4ccec5c0670940a4281106dd0bb343f47b7471f779df49c2fbe7",
                 "sha256:c86254f9220d55e31cc94d69bade760f0847da8000def4dfe1c6b872fd14ff14"
             ],
+            "markers": "python_version >= '3.6'",
             "version": "==21.0"
         },
         "pluggy": {
             "hashes": [
-                "sha256:15b2acde666561e1298d71b523007ed7364de07029219b604cf808bfa1c765b0",
-                "sha256:966c145cd83c96502c3c3868f50408687b38434af77734af1e9ca461a4081d2d"
+                "sha256:4224373bacce55f955a878bf9cfa763c1e360858e330072059e10bad68531159",
+                "sha256:74134bbf457f031a36d68416e1509f34bd5ccc019f0bcc952c7b909d06b37bd3"
             ],
-            "version": "==0.13.1"
+            "markers": "python_version >= '3.6'",
+            "version": "==1.0.0"
         },
         "py": {
             "hashes": [
                 "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": {
@@ -235,15 +244,16 @@
                 "sha256:c203ec8783bf771a155b207279b9bccb8dea02d8f0c9e5f8ead507bc3246ecc1",
                 "sha256:ef9d7589ef3c200abe66653d3f1ab1033c3c419ae9b9bdb1240a85b024efc88b"
             ],
+            "markers": "python_version >= '2.6' and python_version not in '3.0, 3.1, 3.2, 3.3'",
             "version": "==2.4.7"
         },
         "pytest": {
             "hashes": [
-                "sha256:50bcad0a0b9c5a72c8e4e7c9855a3ad496ca6a881a3641b4260605450772c54b",
-                "sha256:91ef2131a9bd6be8f76f1f08eac5c5317221d6ad1e143ae03894b862e8976890"
+                "sha256:131b36680866a76e6781d13f101efb86cf674ebb9762eb70d3082b6f29889e89",
+                "sha256:7310f8d27bc79ced999e760ca304d69f6ba6c6649c0b60fb0e04a4a77cacc134"
             ],
             "index": "pypi",
-            "version": "==6.2.4"
+            "version": "==6.2.5"
         },
         "pytest-cov": {
             "hashes": [
@@ -258,6 +268,7 @@
                 "sha256:806143ae5bfb6a3c6e736a764057db0e6a0e05e338b5630894a5f779cabb4f9b",
                 "sha256:b3bda1d108d5dd99f4a20d24d9c348e91c4db7ab1b749200bded2f839ccbe68f"
             ],
+            "markers": "python_version >= '2.6' and python_version not in '3.0, 3.1, 3.2, 3.3'",
             "version": "==0.10.2"
         },
         "typed-ast": {
@@ -293,17 +304,17 @@
                 "sha256:f8afcf15cc511ada719a88e013cec87c11aff7b91f019295eb4530f96fe5ef2f",
                 "sha256:fb1bbeac803adea29cedd70781399c99138358c26d05fcbd23c13016b7f5ec65"
             ],
-            "markers": "implementation_name == 'cpython' and python_version < '3.8'",
+            "markers": "python_version < '3.8' and implementation_name == 'cpython'",
             "version": "==1.4.3"
         },
         "typing-extensions": {
             "hashes": [
-                "sha256:0ac0f89795dd19de6b97debb0c6af1c70987fd80a2d62d1958f7e56fcc31b497",
-                "sha256:50b6f157849174217d0656f99dc82fe932884fb250826c18350e159ec6cdf342",
-                "sha256:779383f6086d90c99ae41cf0ff39aac8a7937a9283ce0a414e5dd782f4c94a84"
+                "sha256:49f75d16ff11f1cd258e1b988ccff82a3ca5570217d7ad8c5f48205dd99a677e",
+                "sha256:d8226d10bc02a29bcc81df19a26e56a9647f8b0a6d4a83924139f4a8b01f17b7",
+                "sha256:f1d25edafde516b146ecd0613dabcc61409817af4766fbbcfb8d1ad4ec441a34"
             ],
             "markers": "python_version < '3.8'",
-            "version": "==3.10.0.0"
+            "version": "==3.10.0.2"
         },
         "wrapt": {
             "hashes": [
@@ -316,6 +327,7 @@
                 "sha256:957cfda87797e389580cb8b9e3870841ca991e2125350677b2ca83a0e99390a3",
                 "sha256:f5812b1e007e48cff63449a5e9f4e7ebea716b4111f9c4f9a645f91d579bf0c4"
             ],
+            "markers": "python_version >= '3.6'",
             "version": "==3.5.0"
         }
     }