diff --git a/Pipfile.lock b/Pipfile.lock
index f5a6f9e..e225bcf 100644
--- a/Pipfile.lock
+++ b/Pipfile.lock
@@ -3,19 +3,6 @@
         "hash": {
             "sha256": "3444a5983e2b708e4123365dde8f4464d3f7bd214da1a5ddbd45da1e1f5abd6a"
         },
-        "host-environment-markers": {
-            "implementation_name": "cpython",
-            "implementation_version": "3.6.3",
-            "os_name": "posix",
-            "platform_machine": "x86_64",
-            "platform_python_implementation": "CPython",
-            "platform_release": "16.7.0",
-            "platform_system": "Darwin",
-            "platform_version": "Darwin Kernel Version 16.7.0: Thu Jun 15 17:36:27 PDT 2017; root:xnu-3789.70.16~2/RELEASE_X86_64",
-            "python_full_version": "3.6.3",
-            "python_version": "3.6",
-            "sys_platform": "darwin"
-        },
         "pipfile-spec": 6,
         "requires": {
             "python_version": "3.6"
@@ -31,87 +18,83 @@
     "default": {
         "certifi": {
             "hashes": [
-                "sha256:244be0d93b71e93fc0a0a479862051414d0e00e16435707e5bf5000f92e04694",
-                "sha256:5ec74291ca1136b40f0379e1128ff80e866597e4e2c1e755739a913bbc3613c0"
+                "sha256:e4f3620cfea4f83eedc95b24abd9cd56f3c4b146dd0177e83a21b4eb49e21e50",
+                "sha256:fd7c7c74727ddcf00e9acd26bba8da604ffec95bf1c2144e67aff7a8b50e6cef"
             ],
-            "version": "==2017.11.5"
+            "version": "==2019.9.11"
         },
         "chardet": {
             "hashes": [
-                "sha256:fc323ffcaeaed0e0a02bf4d117757b98aed530d9ed4531e3e15460124c106691",
-                "sha256:84ab92ed1c4d4f16916e05906b6b75a6c0fb5db821cc65e70cbd64a3e2a5eaae"
+                "sha256:84ab92ed1c4d4f16916e05906b6b75a6c0fb5db821cc65e70cbd64a3e2a5eaae",
+                "sha256:fc323ffcaeaed0e0a02bf4d117757b98aed530d9ed4531e3e15460124c106691"
             ],
             "version": "==3.0.4"
         },
         "idna": {
             "hashes": [
-                "sha256:8c7309c718f94b3a625cb648ace320157ad16ff131ae0af362c9f21b80ef6ec4",
-                "sha256:2c6a5de3089009e3da7c5dde64a141dbc8551d5b7f6cf4ed7c2568d0cc520a8f"
+                "sha256:156a6814fb5ac1fc6850fb002e0852d56c0c8d2531923a51032d1b70760e186e",
+                "sha256:684a38a6f903c1d71d6d5fac066b58d7768af4de2b832e426ec79c30daa94a16"
             ],
-            "version": "==2.6"
+            "version": "==2.7"
         },
         "requests": {
             "hashes": [
-                "sha256:6a1b267aa90cac58ac3a765d067950e7dbbf75b1da07e895d1f594193a40a38b",
-                "sha256:9c443e7324ba5b85070c4a818ade28bfabedf16ea10206da1132edaa6dda237e"
+                "sha256:99dcfdaaeb17caf6e526f32b6a7b780461512ab3f1d992187801694cba42770c",
+                "sha256:a84b8c9ab6239b578f22d1c21d51b696dcfe004032bb80ea832398d6909d7279"
             ],
-            "version": "==2.18.4"
+            "index": "pypi",
+            "version": "==2.20.0"
         },
         "urllib3": {
             "hashes": [
-                "sha256:06330f386d6e4b195fbfc736b297f58c5a892e4440e54d294d7004e3a9bbea1b",
-                "sha256:cc44da8e1145637334317feebd728bd869a35285b93cbb4cca2577da7e62db4f"
+                "sha256:2393a695cd12afedd0dcb26fe5d50d0cf248e5a66f75dbd89a3d4eb333a61af4",
+                "sha256:a637e5fae88995b256e3409dc4d52c2e2e0ba32c42a6365fee8bbd2238de3cfb"
             ],
-            "version": "==1.22"
+            "version": "==1.24.3"
         }
     },
     "develop": {
         "astroid": {
             "hashes": [
-                "sha256:39a21dd2b5d81a6731dc0ac2884fa419532dffd465cdd43ea6c168d36b76efb3",
-                "sha256:492c2a2044adbf6a84a671b7522e9295ad2f6a7c781b899014308db25312dd35"
+                "sha256:09a3fba616519311f1af8a461f804b68f0370e100c9264a035aa7846d7852e33",
+                "sha256:5a79c9b4bd6c4be777424593f957c996e20beb5f74e0bc332f47713c6f675efe"
             ],
-            "version": "==1.5.3"
+            "version": "==2.3.2"
         },
         "attrs": {
             "hashes": [
-                "sha256:e7d51b70f19a4da5fe6b3c9938983e0af3b91e230edc504bd73c443d98037063",
-                "sha256:c78f53e32d7cf36d8597c8a2c7e3c0ad210f97b9509e152e4c37fa80869f823c"
-            ],
-            "version": "==17.3.0"
-        },
-        "backports.functools-lru-cache": {
-            "hashes": [
-                "sha256:4ba998e881f285c1d1b73f5b6e3766539b4e162320f9589334400c5ddc35198c",
-                "sha256:31f235852f88edc1558d428d890663c49eb4514ffec9f3650e7f3c9e4a12e36f"
+                "sha256:08a96c641c3a74e44eb59afb61a24f2cb9f4d7188748e76ba4bb5edfa3cb7d1c",
+                "sha256:f7b7ce16570fe9965acd6d30101a28f62fb4a7f9e926b3bbc9b61f8b04247e72"
             ],
-            "markers": "python_version < '3.3'",
-            "version": "==1.4"
+            "version": "==19.3.0"
         },
         "blessings": {
             "hashes": [
-                "sha256:edc5713061f10966048bf6b40d9a514b381e0ba849c64e034c4ef6c1847d3007"
+                "sha256:98e5854d805f50a5b58ac2333411b0482516a8210f23f43308baeb58d77c157d",
+                "sha256:b1fdd7e7a675295630f9ae71527a8ebc10bfefa236b3d6aa4932ee4462c17ba3",
+                "sha256:caad5211e7ba5afe04367cdd4cfc68fa886e2e08f6f35e76b7387d2109ccea6e"
             ],
-            "version": "==1.6"
+            "version": "==1.7"
         },
         "bpython": {
             "hashes": [
                 "sha256:2e1466059cafbbcfd232e8e7ead821daf520bc7b2ccb02bca6a98ff8b0ef18d9",
                 "sha256:faf3ddf602bd8ad7f133011778966333b9dcefbc3100df27a200b648906f655f"
             ],
+            "index": "pypi",
             "version": "==0.16"
         },
         "certifi": {
             "hashes": [
-                "sha256:244be0d93b71e93fc0a0a479862051414d0e00e16435707e5bf5000f92e04694",
-                "sha256:5ec74291ca1136b40f0379e1128ff80e866597e4e2c1e755739a913bbc3613c0"
+                "sha256:e4f3620cfea4f83eedc95b24abd9cd56f3c4b146dd0177e83a21b4eb49e21e50",
+                "sha256:fd7c7c74727ddcf00e9acd26bba8da604ffec95bf1c2144e67aff7a8b50e6cef"
             ],
-            "version": "==2017.11.5"
+            "version": "==2019.9.11"
         },
         "chardet": {
             "hashes": [
-                "sha256:fc323ffcaeaed0e0a02bf4d117757b98aed530d9ed4531e3e15460124c106691",
-                "sha256:84ab92ed1c4d4f16916e05906b6b75a6c0fb5db821cc65e70cbd64a3e2a5eaae"
+                "sha256:84ab92ed1c4d4f16916e05906b6b75a6c0fb5db821cc65e70cbd64a3e2a5eaae",
+                "sha256:fc323ffcaeaed0e0a02bf4d117757b98aed530d9ed4531e3e15460124c106691"
             ],
             "version": "==3.0.4"
         },
@@ -129,162 +112,116 @@
             ],
             "version": "==0.3.9"
         },
-        "configparser": {
-            "hashes": [
-                "sha256:5308b47021bc2340965c371f0f058cc6971a04502638d4244225c49d80db273a"
-            ],
-            "markers": "python_version == '2.7'",
-            "version": "==3.5.0"
-        },
         "coverage": {
             "hashes": [
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                 "sha256:007eeef7e23f9473622f7d94a3e029a45d55a92a1f083f0f3512f5ab9a669b05",
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-                "sha256:845fddf89dca1e94abe168760a38271abfc2e31863fbb4ada7f9a99337d7c3dc",
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-            "version": "==0.4.12"
+                "sha256:000546ad01e6389e98626c1367be58efa613fa82a1be98b0c6fc24b563acc6d0",
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+                "sha256:51503524dd6f152ab4ad1fbd168fc6c30b5795e8c70be4410a64940b3abb55c0",
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+                "sha256:b4a2b782b8a8c5522ad35c93e04d60e2ba7f7dcb9271ec8e8c3e08239be6c7b4",
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+            "version": "==1.4.2"
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         "libtmux": {
             "hashes": [
@@ -301,22 +238,25 @@
         },
         "pluggy": {
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-                "sha256:7f8ae7f5bdf75671a718d2daf0a64b7885f74510bcd98b1a0bb420eb9a9d0cff"
+                "sha256:7f8ae7f5bdf75671a718d2daf0a64b7885f74510bcd98b1a0bb420eb9a9d0cff",
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         "py": {
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-                "sha256:ca18943e28235417756316bfada6cd96b23ce60dd532642690dcfdaba988a76d"
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-            "version": "==1.5.2"
+            "version": "==1.8.0"
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         "pycodestyle": {
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-                "sha256:682256a5b318149ca0d2a9185d365d8864a768a28db66a84a2ea946bcc426766"
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+            "index": "pypi",
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@@ -324,20 +264,22 @@
                 "sha256:08bd6a50edf8cffa9fa09a463063c425ecaaf10d1eb0335a7e8b1401aef89e6f",
                 "sha256:8d616a382f243dbf19b54743f280b80198be0bca3a5396f1d2e1fca6223e8805"
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-                "sha256:dbae1046def0efb574852fab9e90209b23f556367b5a320c0bcb871c77c3e8cc"
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-            "version": "==2.2.0"
+            "version": "==2.4.2"
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-                "sha256:1f65b3815c3bf7524b845711d54c4242e4057dd93826586620239ecdfe591fb1"
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             "version": "==1.7.4"
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@@ -345,74 +287,102 @@
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+                "sha256:ffde2fbfad571af120fcbfbbc61c72469e72f550d676c3342492a9dfdefb8f12"
+            ],
+            "markers": "implementation_name == 'cpython' and python_version < '3.8'",
+            "version": "==1.4.0"
+        },
+        "typing": {
+            "hashes": [
+                "sha256:91dfe6f3f706ee8cc32d38edbbf304e9b7583fb37108fef38229617f8b3eba23",
+                "sha256:c8cabb5ab8945cd2f54917be357d134db9cc1eb039e59d1606dc1e60cb1d9d36",
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+            ],
+            "version": "==3.7.4.1"
+        },
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             "hashes": [
-                "sha256:06330f386d6e4b195fbfc736b297f58c5a892e4440e54d294d7004e3a9bbea1b",
-                "sha256:cc44da8e1145637334317feebd728bd869a35285b93cbb4cca2577da7e62db4f"
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-            "version": "==1.22"
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+            "version": "==1.11.2"
         }
     }
 }