diff --git a/Pipfile.lock b/Pipfile.lock
index f568532..9dd550b 100644
--- a/Pipfile.lock
+++ b/Pipfile.lock
@@ -65,40 +65,57 @@
         },
         "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"
+                "sha256:0147f7833c41927d84f5af9219d9b32f875c0689e5e74ac8ca3cb61e73a698f9",
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+                "sha256:42a1fb5dee3355df90b635906bb99126faa7936d87dfc97eacc5293397618cb7",
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+                "sha256:4d8b453764b9b26b0dd2afb83086a7c3f9379134e340288d2a52f8a91592394b",
+                "sha256:51a441011a30d693e71dea198b2a6f53ba029afc39f8e2aeb5b77245c1b282ef",
+                "sha256:557594a50bfe3fb0b1b57460f6789affe8850ad19c1acf2d14a3e12b2757d489",
+                "sha256:572f917267f363101eec375c109c9c1118037c7cc98041440b5eabda3185ac7b",
+                "sha256:62512c0ec5d307f56d86504c58eace11c1bc2afcdf44e3ff20de8ca427ca1d0e",
+                "sha256:65ad3ff837c89a229d626b8004f0ee32110f9bfdb6a88b76a80df36ccc60d926",
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+                "sha256:72bf437d54186d104388cbae73c9f2b0f8a3e11b6e8d7deb593bd14625c96026",
+                "sha256:738e823a746841248b56f0f3bd6abf3b73af191d1fd65e4c723b9c456216f0ad",
+                "sha256:78287731e3601ea5ce9d6468c82d88a12ef8fe625d6b7bdec9b45d96c1ad6533",
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+                "sha256:977ce557d79577a3dd510844904d5d968bfef9489f512be65e2882e1c6eed7d8",
+                "sha256:994ce5a7b3d20981b81d83618aa4882f955bfa573efdbef033d5632b58597ba9",
+                "sha256:9ad5895938a894c368d49d8470fe9f519909e5ebc6b8f8ea5190bd0df6aa4271",
+                "sha256:9eb0a1923354e0fdd1c8a6f53f5db2e6180d670e2b587914bf2e79fa8acfd003",
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+                "sha256:a11a2c019324fc111485e79d55907e7289e53d0031275a6c8daed30690bc50c0",
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+                "sha256:ae6de0e41f44794e68d23644636544ed8003ce24845f213b24de097cbf44997f",
+                "sha256:b1d0a1bce919de0dd8da5cff4e616b2d9e6ebf3bd1410ff645318c3dd615010a",
+                "sha256:b8e4f15b672c9156c1154249a9c5746e86ac9ae9edc3799ee3afebc323d9d9e0",
+                "sha256:bbca34dca5a2d60f81326d908d77313816fad23d11b6069031a3d6b8c97a54f9",
+                "sha256:bf656cd74ff7b4ed7006cdb2a6728150aaad69c7242b42a2a532f77b63ea233f",
+                "sha256:c40966b683d92869b72ea3c11fd6b99a091fd30e12652727eca117273fc97366",
+                "sha256:c95257aa2ccf75d3d91d772060538d5fea7f625e48157f8ca44594f94d41cb33",
+                "sha256:db2797ed7a7e883b9ab76e8e778bb4c859fc2037d6fd0644d8675e64d58d1653",
+                "sha256:dc5023be1c2a8b0a0ab5e31389e62c28b2453eb31dd069f4b8d1a0f9814d951a",
+                "sha256:e14bceb1f3ae8a14374be2b2d7bc12a59226872285f91d66d301e5f41705d4d6",
+                "sha256:e3c4f5211394cd0bf6874ac5d29684a495f9c374919833dcfff0bd6d37f96201",
+                "sha256:e76f017b6d4140a038c5ff12be1581183d7874e41f1c0af58ecf07748d36a336",
+                "sha256:e7d5606b9240ed4def9cbdf35be4308047d11e858b9c88a6c26974758d6225ce",
+                "sha256:f0f80e323a17af63eac6a9db0c9188c10f1fd815c3ab299727150cc0eb92c7a4",
+                "sha256:fb2fa2f6506c03c48ca42e3fe5a692d7470d290c047ee6de7c0f3e5fa7639ac9",
+                "sha256:ffa8fee2b1b9e60b531c4c27cf528d6b5d5da46b1730db1f4d6eee56ff282e07"
+            ],
+            "version": "==6.1.1"
         },
         "flake8": {
             "hashes": [