diff --git a/Pipfile.lock b/Pipfile.lock
index f568532..4d48c0e 100644
--- a/Pipfile.lock
+++ b/Pipfile.lock
@@ -65,40 +65,42 @@
         },
         "coverage": {
             "hashes": [
-                "sha256:00f1d23f4336efc3b311ed0d807feb45098fc86dee1ca13b3d6768cdab187c8a",
-                "sha256:01333e1bd22c59713ba8a79f088b3955946e293114479bbfc2e37d522be03355",
-                "sha256:0cb4be7e784dcdc050fc58ef05b71aa8e89b7e6636b99967fadbdba694cf2b65",
-                "sha256:0e61d9803d5851849c24f78227939c701ced6704f337cad0a91e0972c51c1ee7",
-                "sha256:1601e480b9b99697a570cea7ef749e88123c04b92d84cedaa01e117436b4a0a9",
-                "sha256:2742c7515b9eb368718cd091bad1a1b44135cc72468c731302b3d641895b83d1",
-                "sha256:2d27a3f742c98e5c6b461ee6ef7287400a1956c11421eb574d843d9ec1f772f0",
-                "sha256:402e1744733df483b93abbf209283898e9f0d67470707e3c7516d84f48524f55",
-                "sha256:5c542d1e62eece33c306d66fe0a5c4f7f7b3c08fecc46ead86d7916684b36d6c",
-                "sha256:5f2294dbf7875b991c381e3d5af2bcc3494d836affa52b809c91697449d0eda6",
-                "sha256:6402bd2fdedabbdb63a316308142597534ea8e1895f4e7d8bf7476c5e8751fef",
-                "sha256:66460ab1599d3cf894bb6baee8c684788819b71a5dc1e8fa2ecc152e5d752019",
-                "sha256:782caea581a6e9ff75eccda79287daefd1d2631cc09d642b6ee2d6da21fc0a4e",
-                "sha256:79a3cfd6346ce6c13145731d39db47b7a7b859c0272f02cdb89a3bdcbae233a0",
-                "sha256:7a5bdad4edec57b5fb8dae7d3ee58622d626fd3a0be0dfceda162a7035885ecf",
-                "sha256:8fa0cbc7ecad630e5b0f4f35b0f6ad419246b02bc750de7ac66db92667996d24",
-                "sha256:a027ef0492ede1e03a8054e3c37b8def89a1e3c471482e9f046906ba4f2aafd2",
-                "sha256:a3f3654d5734a3ece152636aad89f58afc9213c6520062db3978239db122f03c",
-                "sha256:a82b92b04a23d3c8a581fc049228bafde988abacba397d57ce95fe95e0338ab4",
-                "sha256:acf3763ed01af8410fc36afea23707d4ea58ba7e86a8ee915dfb9ceff9ef69d0",
-                "sha256:adeb4c5b608574a3d647011af36f7586811a2c1197c861aedb548dd2453b41cd",
-                "sha256:b83835506dfc185a319031cf853fa4bb1b3974b1f913f5bb1a0f3d98bdcded04",
-                "sha256:bb28a7245de68bf29f6fb199545d072d1036a1917dca17a1e75bbb919e14ee8e",
-                "sha256:bf9cb9a9fd8891e7efd2d44deb24b86d647394b9705b744ff6f8261e6f29a730",
-                "sha256:c317eaf5ff46a34305b202e73404f55f7389ef834b8dbf4da09b9b9b37f76dd2",
-                "sha256:dbe8c6ae7534b5b024296464f387d57c13caa942f6d8e6e0346f27e509f0f768",
-                "sha256:de807ae933cfb7f0c7d9d981a053772452217df2bf38e7e6267c9cbf9545a796",
-                "sha256:dead2ddede4c7ba6cb3a721870f5141c97dc7d85a079edb4bd8d88c3ad5b20c7",
-                "sha256:dec5202bfe6f672d4511086e125db035a52b00f1648d6407cc8e526912c0353a",
-                "sha256:e1ea316102ea1e1770724db01998d1603ed921c54a86a2efcb03428d5417e489",
-                "sha256:f90bfc4ad18450c80b024036eaf91e4a246ae287701aaa88eaebebf150868052"
-            ],
-            "index": "pypi",
-            "version": "==5.1"
+                "sha256:0c471fdc5b9db0229fb2477ac445a886c7a6d86029534e29f0dc65f517c8e704",
+                "sha256:0fb10cafd85a931837be9d18420c80d16cbb13d1d9a78d78dee932af2dd55135",
+                "sha256:0ff19756ee78fe2377eb5126a196fe84643f149f840ea7d74b4c08686f5484e4",
+                "sha256:2987506781355303506660cb1917b0dcd02a76f7873db604a415aadb2193bd96",
+                "sha256:34e1f49e25336840857c1c1593764342316d0b1ce5a8d74c314d4883468f9dfe",
+                "sha256:422ab4cf66a7ed0c119ce8db64c99c6667eda53acaa63a4c178dbac4100f57b6",
+                "sha256:42f65145acfbbac227b862fe509d0353861d70c455f91a14ace52fe378cdc085",
+                "sha256:45ca96310fda694eb9ae1cdee0355cf66d2acc828678513b331172061289c17a",
+                "sha256:49f3434739e443771171e4d6c0e7df12cc83d7f00beb7b5d6b3a655a873c51ab",
+                "sha256:58e84430bf1b2904b96bcee9ba7f736fb7efb84f5bd7c7b5b3df54db12476360",
+                "sha256:6130f0f95461fc46884ce73269fc72028e139359a0583a12f7510a45a081faa3",
+                "sha256:68dce32c064d8597f91d5d12a7a91a92ce0a37d1a024108d25834bd0ea905e11",
+                "sha256:6c0d8e633cec3ac7a32f676e8b777a56f0ba4a954aecb0634301fdb85c40a845",
+                "sha256:71a8baf10a755c35b7015d524279ebec9b801bc46c821e344914be0ad6c73bfc",
+                "sha256:749eaf8cf5d03695359ff08ea8d01ac42381069baf42d991a36ba30cc34da87a",
+                "sha256:8476aa688efcc4521264f12e6e74c2587cd4623429c8f5aab613e0b46de41283",
+                "sha256:870f8ea4bbc79bdd0dbcf7367f89ee4cfd3f278063a0e16bd78baa05c0541fc9",
+                "sha256:9ac1d0cacaf12168d53bfcd390b69b9548919c6a5829cb1fd2f28f122ce5c83c",
+                "sha256:9d01b0d67ab782efa3c940a8ea1fc3ccb7ca0fc24a187b6d772bf6a45e0efb2f",
+                "sha256:9d4560814fc741f571eb99996e6ef0ba4cd70a8e3c2d98a526c1a2ce13a7e982",
+                "sha256:9f5383bb5912817e05d1f411279b34d8bde518fe8dce6f3f53a8731dca4f133e",
+                "sha256:a518d13a3cd905d89891123d765e15e61538849e2be0ee5f85ad2bdb3fd91cc9",
+                "sha256:b10b845dbb809056c8c96c02a4d1644084fcb7c3d405d1262eb6dfaab89650b1",
+                "sha256:be883832d1ddc827c742928f86b861b99ee38ae17cd3833172959d18ff437b6a",
+                "sha256:cd585d280e1199290e8e0dca6b297e021cfbcade6759ad56146257a53b90c5b0",
+                "sha256:dc5aec152c59f8db9c723e2f3c98d64b1ead814f0a9c2c4e0b998f0ae7338c30",
+                "sha256:dd0e050a0dc5101dbf1e8f87d7362d65404f8b29d25f22eda0418bb7b31c6954",
+                "sha256:ddc4e200767bdf76182a634fba47343e223492b74d33edc5cf680a50e14f6d09",
+                "sha256:e32334063e661da80ebc1a720b829228e918d1f24b947afebbe84edcff157c39",
+                "sha256:eca26715688fdb7ec73d316d89687ac9bf4cdd7df0ceb8b22a3a2928bf8e7ece",
+                "sha256:ef73a4e074fb0b470eb64a552d460394630ccaab73b8a7b2f523514f7df2b805",
+                "sha256:f122138bfc6d45bc1c770a9987ce28c89e874638e423d25dff5d40e66fc02878",
+                "sha256:f6f14b05b5c0456eb6ab82b6acd937b8118eca14ec621bd1729ca33f251d9ea4",
+                "sha256:fc333e8971e8be0a310e4398426ec2b643a3466092643ade1500bdf72a789e83"
+            ],
+            "version": "==6.1"
         },
         "flake8": {
             "hashes": [