diff --git a/Pipfile.lock b/Pipfile.lock
index fa0f0d8..ad08480 100644
--- a/Pipfile.lock
+++ b/Pipfile.lock
@@ -3,19 +3,6 @@
         "hash": {
             "sha256": "f513876d2a5de66c2310fb7389d3893a164a058ef4ca3ab3f99642deeebc62ae"
         },
-        "host-environment-markers": {
-            "implementation_name": "cpython",
-            "implementation_version": "3.6.4",
-            "os_name": "posix",
-            "platform_machine": "x86_64",
-            "platform_python_implementation": "CPython",
-            "platform_release": "17.4.0",
-            "platform_system": "Darwin",
-            "platform_version": "Darwin Kernel Version 17.4.0: Sun Dec 17 09:19:54 PST 2017; root:xnu-4570.41.2~1/RELEASE_X86_64",
-            "python_full_version": "3.6.4",
-            "python_version": "3.6",
-            "sys_platform": "darwin"
-        },
         "pipfile-spec": 6,
         "requires": {},
         "sources": [
@@ -35,6 +22,20 @@
             "markers": "sys_platform == 'darwin'",
             "version": "==0.1.0"
         },
+        "asttokens": {
+            "hashes": [
+                "sha256:051ed49c3dcae8913ea7cd08e46a606dba30b79993209636c4875bc1d637bc24",
+                "sha256:b03869718ba9a6eb027e134bfdf69f38a236d681c83c160d510768af11254ba0"
+            ],
+            "version": "==2.4.1"
+        },
+        "backcall": {
+            "hashes": [
+                "sha256:5cbdbf27be5e7cfadb448baf0aa95508f91f2bbc6c6437cd9cd06e2a4c215e1e",
+                "sha256:fbbce6a29f263178a1f7915c1940bde0ec2b2a967566fe1c65c1dfb7422bd255"
+            ],
+            "version": "==0.2.0"
+        },
         "bleach": {
             "hashes": [
                 "sha256:cf567e7ed30ea5e05b31231d88ae170af1c5544758b9d7bebbc20590b7c30b1e",
@@ -86,10 +87,11 @@
         },
         "decorator": {
             "hashes": [
-                "sha256:94d1d8905f5010d74bbbd86c30471255661a14187c45f8d7f3e5aa8540fdb2e5",
-                "sha256:7d46dd9f3ea1cf5f06ee0e4e1277ae618cf48dfb10ada7c8427cd46c42702a0e"
+                "sha256:637996211036b6385ef91435e4fae22989472f9d571faba8927ba8253acbc330",
+                "sha256:b8c3f85900b9dc423225913c5aace94729fe1fa9763b38939a95226f02d37186"
             ],
-            "version": "==4.2.1"
+            "markers": "python_version >= '3.5'",
+            "version": "==5.1.1"
         },
         "docutils": {
             "hashes": [
@@ -106,6 +108,14 @@
             ],
             "version": "==0.2.3"
         },
+        "executing": {
+            "hashes": [
+                "sha256:8d63781349375b5ebccc3142f4b30350c0cd9c79f921cde38be2be4637e98eaf",
+                "sha256:8ea27ddd260da8150fa5a708269c4a10e76161e2496ec3e587da9e3c0fe4b9ab"
+            ],
+            "markers": "python_version >= '3.8'",
+            "version": "==2.1.0"
+        },
         "gcsfs": {
             "hashes": [
                 "sha256:a83ac573aa3fc13b0ee473e460f0ea2702c8b1e16b5d807f7b0fbe9b0357113c",
@@ -151,10 +161,12 @@
         },
         "ipython": {
             "hashes": [
-                "sha256:fcc6d46f08c3c4de7b15ae1c426e15be1b7932bcda9d83ce1a4304e8c1129df3",
-                "sha256:51c158a6c8b899898d1c91c6b51a34110196815cc905f9be0fa5878e19355608"
+                "sha256:b13a1d6c1f5818bd388db53b7107d17454129a70de2b87481d555daede5eb49e",
+                "sha256:b38c31e8fc7eff642fc7c597061fff462537cf2314e3225a19c906b7b0d8a345"
             ],
-            "version": "==6.2.1"
+            "index": "pypi",
+            "markers": "python_version >= '3.8'",
+            "version": "==8.10.0"
         },
         "ipython-genutils": {
             "hashes": [
@@ -172,10 +184,11 @@
         },
         "jedi": {
             "hashes": [
-                "sha256:d795f2c2e659f5ea39a839e5230d70a0b045d0daee7ca2403568d8f348d0ad89",
-                "sha256:d6e799d04d1ade9459ed0f20de47c32f2285438956a677d083d3c98def59fa97"
+                "sha256:cf0496f3651bc65d7174ac1b7d043eff454892c708a87d1b683e57b569927ffd",
+                "sha256:e983c654fe5c02867aef4cdfce5a2fbb4a50adc0af145f70504238f18ef5e7e0"
             ],
-            "version": "==0.11.1"
+            "markers": "python_version >= '3.6'",
+            "version": "==0.19.1"
         },
         "jinja2": {
             "hashes": [
@@ -247,6 +260,14 @@
             ],
             "version": "==1.0"
         },
+        "matplotlib-inline": {
+            "hashes": [
+                "sha256:8423b23ec666be3d16e16b60bdd8ac4e86e840ebd1dd11a30b9f117f2fa0ab90",
+                "sha256:df192d39a4ff8f21b1895d72e6a13f5fcc5099f00fa84384e0ea28c2cc0653ca"
+            ],
+            "markers": "python_version >= '3.8'",
+            "version": "==0.1.7"
+        },
         "mistune": {
             "hashes": [
                 "sha256:b4c512ce2fc99e5a62eb95a4aba4b73e5f90264115c40b70a21e1f7d4e0eac91",
@@ -304,10 +325,11 @@
         },
         "parso": {
             "hashes": [
-                "sha256:a7bb86fe0844304869d1c08e8bd0e52be931228483025c422917411ab82d628a",
-                "sha256:5815f3fe254e5665f3c5d6f54f086c2502035cb631a91341591b5a564203cffb"
+                "sha256:a418670a20291dacd2dddc80c377c5c3791378ee1e8d12bffc35420643d43f18",
+                "sha256:eb3a7b58240fb99099a345571deecc0f9540ea5f4dd2fe14c2a99d6b281ab92d"
             ],
-            "version": "==0.1.1"
+            "markers": "python_version >= '3.6'",
+            "version": "==0.8.4"
         },
         "pbr": {
             "hashes": [
@@ -318,33 +340,40 @@
         },
         "pexpect": {
             "hashes": [
-                "sha256:6ff881b07aff0cb8ec02055670443f784434395f90c3285d2ae470f921ade52a",
-                "sha256:67b85a1565968e3d5b5e7c9283caddc90c3947a2625bed1905be27bd5a03e47d"
+                "sha256:7236d1e080e4936be2dc3e326cec0af72acf9212a7e1d060210e70a47e253523",
+                "sha256:ee7d41123f3c9911050ea2c2dac107568dc43b2d3b0c7557a33212c398ead30f"
             ],
             "markers": "sys_platform != 'win32'",
-            "version": "==4.4.0"
+            "version": "==4.9.0"
         },
         "pickleshare": {
             "hashes": [
-                "sha256:c9a2541f25aeabc070f12f452e1f2a8eae2abd51e1cd19e8430402bdf4c1d8b5",
-                "sha256:84a9257227dfdd6fe1b4be1319096c20eb85ff1e82c7932f36efccfe1b09737b"
+                "sha256:87683d47965c1da65cdacaf31c8441d12b8044cdec9aca500cd78fc2c683afca",
+                "sha256:9649af414d74d4df115d5d718f82acb59c9d418196b7b4290ed47a12ce62df56"
             ],
-            "version": "==0.7.4"
+            "version": "==0.7.5"
         },
         "prompt-toolkit": {
             "hashes": [
-                "sha256:3f473ae040ddaa52b52f97f6b4a493cfa9f5920c255a12dc56a7d34397a398a4",
-                "sha256:1df952620eccb399c53ebb359cc7d9a8d3a9538cb34c5a1344bdbeb29fbcc381",
-                "sha256:858588f1983ca497f1cf4ffde01d978a3ea02b01c8a26a8bbc5cd2e66d816917"
+                "sha256:d6623ab0477a80df74e646bdbc93621143f5caf104206aa29294d53de1a03d90",
+                "sha256:f49a827f90062e411f1ce1f854f2aedb3c23353244f8108b89283587397ac10e"
             ],
-            "version": "==1.0.15"
+            "markers": "python_full_version >= '3.7.0'",
+            "version": "==3.0.48"
         },
         "ptyprocess": {
             "hashes": [
-                "sha256:e8c43b5eee76b2083a9badde89fd1bbce6c8942d1045146e100b7b5e014f4f1a",
-                "sha256:e64193f0047ad603b71f202332ab5527c5e52aa7c8b609704fc28c0dc20c4365"
+                "sha256:4b41f3967fce3af57cc7e94b888626c18bf37a083e3651ca8feeb66d492fef35",
+                "sha256:5c5d0a3b48ceee0b48485e0c26037c0acd7d29765ca3fbb5cb3831d347423220"
+            ],
+            "version": "==0.7.0"
+        },
+        "pure-eval": {
+            "hashes": [
+                "sha256:1db8e35b67b3d218d818ae653e27f06c3aa420901fa7b081ca98cbedc874e0d0",
+                "sha256:5f4e983f40564c576c7c8635ae88db5956bb2229d7e9237d03b3c0b0190eaf42"
             ],
-            "version": "==0.5.2"
+            "version": "==0.2.3"
         },
         "pyasn1": {
             "hashes": [
@@ -382,10 +411,11 @@
         },
         "pygments": {
             "hashes": [
-                "sha256:78f3f434bcc5d6ee09020f92ba487f95ba50f1e3ef83ae96b9d5ffa1bab25c5d",
-                "sha256:dbae1046def0efb574852fab9e90209b23f556367b5a320c0bcb871c77c3e8cc"
+                "sha256:786ff802f32e91311bff3889f6e9a86e81505fe99f2735bb6d60ae0c5004f199",
+                "sha256:b8e6aca0523f3ab76fee51799c488e38782ac06eafcf95e7ba832985c8e7b13a"
             ],
-            "version": "==2.2.0"
+            "markers": "python_version >= '3.8'",
+            "version": "==2.18.0"
         },
         "python-dateutil": {
             "hashes": [
@@ -484,10 +514,18 @@
         },
         "six": {
             "hashes": [
-                "sha256:832dc0e10feb1aa2c68dcc57dbb658f1c7e65b9b61af69048abc87a2db00a0eb",
-                "sha256:70e8a77beed4562e7f14fe23a786b54f6296e34344c23bc42f07b15018ff98e9"
+                "sha256:1e61c37477a1626458e36f7b1d82aa5c9b094fa4802892072e49de9c60c4c926",
+                "sha256:8abb2f1d86890a2dfb989f9a77cfcfd3e47c2a354b01111771326f8aa26e0254"
+            ],
+            "markers": "python_version >= '2.7' and python_version not in '3.0, 3.1, 3.2, 3.3'",
+            "version": "==1.16.0"
+        },
+        "stack-data": {
+            "hashes": [
+                "sha256:836a778de4fec4dcd1dcd89ed8abff8a221f58308462e1c4aa2a3cf30148f0b9",
+                "sha256:d5558e0c25a4cb0853cddad3d77da9891a08cb85dd9f9f91b9f8cd66e511e695"
             ],
-            "version": "==1.11.0"
+            "version": "==0.6.3"
         },
         "terminado": {
             "hashes": [
@@ -521,10 +559,11 @@
         },
         "traitlets": {
             "hashes": [
-                "sha256:c6cb5e6f57c5a9bdaa40fa71ce7b4af30298fbab9ece9815b5d995ab6217c7d9",
-                "sha256:9c4bd2d267b7153df9152698efb1050a5d84982d3384a37b2c1f7723ba3e7835"
+                "sha256:9ed0579d3502c94b4b3732ac120375cda96f923114522847de4b3bb98b96b6b7",
+                "sha256:b74e89e397b1ed28cc831db7aea759ba6640cb3de13090ca145426688ff1ac4f"
             ],
-            "version": "==4.3.2"
+            "markers": "python_version >= '3.8'",
+            "version": "==5.14.3"
         },
         "urllib3": {
             "hashes": [
@@ -535,10 +574,10 @@
         },
         "wcwidth": {
             "hashes": [
-                "sha256:f4ebe71925af7b40a864553f761ed559b43544f8f71746c2d756c7fe788ade7c",
-                "sha256:3df37372226d6e63e1b1e1eda15c594bca98a22d33a23832a90998faa96bc65e"
+                "sha256:3da69048e4540d84af32131829ff948f1e022c1c6bdb8d6102117aac784f6859",
+                "sha256:72ea0c06399eb286d978fdedb6923a9eb47e1c486ce63e9b4e64fc18303972b5"
             ],
-            "version": "==0.1.7"
+            "version": "==0.2.13"
         },
         "webencodings": {
             "hashes": [