diff --git a/poetry.lock b/poetry.lock
index 46571fb..91db81c 100644
--- a/poetry.lock
+++ b/poetry.lock
@@ -1,45 +1,45 @@
 [[package]]
-category = "dev"
-description = "A configurable sidebar-enabled Sphinx theme"
 name = "alabaster"
+version = "0.7.12"
+description = "A configurable sidebar-enabled Sphinx theme"
+category = "dev"
 optional = false
 python-versions = "*"
-version = "0.7.12"
 
 [[package]]
-category = "dev"
-description = "An unobtrusive argparse wrapper with natural syntax"
 name = "argh"
+version = "0.26.2"
+description = "An unobtrusive argparse wrapper with natural syntax"
+category = "dev"
 optional = false
 python-versions = "*"
-version = "0.26.2"
 
 [[package]]
-category = "main"
-description = "Command Arguments for Humans."
 name = "args"
+version = "0.1.0"
+description = "Command Arguments for Humans."
+category = "main"
 optional = false
 python-versions = "*"
-version = "0.1.0"
 
 [[package]]
-category = "dev"
-description = "Internationalization utilities"
 name = "babel"
+version = "2.8.0"
+description = "Internationalization utilities"
+category = "dev"
 optional = false
 python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*"
-version = "2.8.0"
 
 [package.dependencies]
 pytz = ">=2015.7"
 
 [[package]]
-category = "main"
-description = "Screen-scraping library"
 name = "beautifulsoup4"
+version = "4.8.2"
+description = "Screen-scraping library"
+category = "main"
 optional = false
 python-versions = "*"
-version = "4.8.2"
 
 [package.dependencies]
 soupsieve = ">=1.2"
@@ -49,101 +49,101 @@ html5lib = ["html5lib"]
 lxml = ["lxml"]
 
 [[package]]
-category = "dev"
-description = "A thin, practical wrapper around terminal coloring, styling, and positioning"
 name = "blessings"
+version = "1.7"
+description = "A thin, practical wrapper around terminal coloring, styling, and positioning"
+category = "dev"
 optional = false
 python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*"
-version = "1.7"
 
 [package.dependencies]
 six = "*"
 
 [[package]]
-category = "main"
-description = "Python package for providing Mozilla's CA Bundle."
 name = "certifi"
+version = "2019.11.28"
+description = "Python package for providing Mozilla's CA Bundle."
+category = "main"
 optional = false
 python-versions = "*"
-version = "2019.11.28"
 
 [[package]]
-category = "main"
-description = "Universal encoding detector for Python 2 and 3"
 name = "chardet"
+version = "3.0.4"
+description = "Universal encoding detector for Python 2 and 3"
+category = "main"
 optional = false
 python-versions = "*"
-version = "3.0.4"
 
 [[package]]
-category = "main"
-description = "Composable command line interface toolkit"
 name = "click"
+version = "7.0"
+description = "Composable command line interface toolkit"
+category = "main"
 optional = false
 python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*"
-version = "7.0"
 
 [[package]]
-category = "main"
-description = "Python Command Line Interface Tools"
 name = "clint"
+version = "0.5.1"
+description = "Python Command Line Interface Tools"
+category = "main"
 optional = false
 python-versions = "*"
-version = "0.5.1"
 
 [package.dependencies]
 args = "*"
 
 [[package]]
-category = "dev"
-description = "Cross-platform colored terminal text."
 name = "colorama"
+version = "0.4.3"
+description = "Cross-platform colored terminal text."
+category = "dev"
 optional = false
 python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*, !=3.4.*"
-version = "0.4.3"
 
 [[package]]
-category = "dev"
-description = "Code coverage measurement for Python"
 name = "coverage"
+version = "5.0.3"
+description = "Code coverage measurement for Python"
+category = "dev"
 optional = false
 python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*, !=3.4.*, <4"
-version = "5.0.3"
 
 [package.extras]
 toml = ["toml"]
 
 [[package]]
-category = "dev"
-description = "Docutils -- Python Documentation Utilities"
 name = "docutils"
+version = "0.16"
+description = "Docutils -- Python Documentation Utilities"
+category = "dev"
 optional = false
 python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*, !=3.4.*"
-version = "0.16"
 
 [[package]]
-category = "dev"
-description = "Discover and load entry points from installed packages."
 name = "entrypoints"
+version = "0.3"
+description = "Discover and load entry points from installed packages."
+category = "dev"
 optional = false
 python-versions = ">=2.7"
-version = "0.3"
 
 [[package]]
-category = "main"
-description = "Universal feed parser, handles RSS 0.9x, RSS 1.0, RSS 2.0, CDF, Atom 0.3, and Atom 1.0 feeds"
 name = "feedparser"
+version = "5.2.1"
+description = "Universal feed parser, handles RSS 0.9x, RSS 1.0, RSS 2.0, CDF, Atom 0.3, and Atom 1.0 feeds"
+category = "main"
 optional = false
 python-versions = "*"
-version = "5.2.1"
 
 [[package]]
-category = "dev"
-description = "the modular source code checker: pep8, pyflakes and co"
 name = "flake8"
+version = "3.7.9"
+description = "the modular source code checker: pep8, pyflakes and co"
+category = "dev"
 optional = false
 python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*"
-version = "3.7.9"
 
 [package.dependencies]
 entrypoints = ">=0.3.0,<0.4.0"
@@ -152,12 +152,12 @@ pycodestyle = ">=2.5.0,<2.6.0"
 pyflakes = ">=2.1.0,<2.2.0"
 
 [[package]]
-category = "dev"
-description = "Green is a clean, colorful, fast python test runner."
 name = "green"
+version = "3.1.0"
+description = "Green is a clean, colorful, fast python test runner."
+category = "dev"
 optional = false
 python-versions = "*"
-version = "3.1.0"
 
 [package.dependencies]
 colorama = "*"
@@ -166,28 +166,28 @@ lxml = "*"
 unidecode = "*"
 
 [[package]]
-category = "main"
-description = "Internationalized Domain Names in Applications (IDNA)"
 name = "idna"
+version = "2.9"
+description = "Internationalized Domain Names in Applications (IDNA)"
+category = "main"
 optional = false
 python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*"
-version = "2.9"
 
 [[package]]
-category = "dev"
-description = "Getting image size from png/jpeg/jpeg2000/gif file"
 name = "imagesize"
+version = "1.2.0"
+description = "Getting image size from png/jpeg/jpeg2000/gif file"
+category = "dev"
 optional = false
 python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*"
-version = "1.2.0"
 
 [[package]]
-category = "dev"
-description = "A very fast and expressive template engine."
 name = "jinja2"
+version = "2.11.1"
+description = "A very fast and expressive template engine."
+category = "dev"
 optional = false
 python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*, !=3.4.*"
-version = "2.11.1"
 
 [package.dependencies]
 MarkupSafe = ">=0.23"
@@ -196,24 +196,24 @@ MarkupSafe = ">=0.23"
 i18n = ["Babel (>=0.8)"]
 
 [[package]]
-category = "dev"
-description = "Python LiveReload is an awesome tool for web developers"
 name = "livereload"
+version = "2.6.1"
+description = "Python LiveReload is an awesome tool for web developers"
+category = "dev"
 optional = false
 python-versions = "*"
-version = "2.6.1"
 
 [package.dependencies]
 six = "*"
 tornado = "*"
 
 [[package]]
-category = "dev"
-description = "Powerful and Pythonic XML processing library combining libxml2/libxslt with the ElementTree API."
 name = "lxml"
+version = "4.5.0"
+description = "Powerful and Pythonic XML processing library combining libxml2/libxslt with the ElementTree API."
+category = "dev"
 optional = false
 python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*, != 3.4.*"
-version = "4.5.0"
 
 [package.extras]
 cssselect = ["cssselect (>=0.7)"]
@@ -222,28 +222,28 @@ htmlsoup = ["beautifulsoup4"]
 source = ["Cython (>=0.29.7)"]
 
 [[package]]
-category = "dev"
-description = "Safely add untrusted strings to HTML/XML markup."
 name = "markupsafe"
+version = "1.1.1"
+description = "Safely add untrusted strings to HTML/XML markup."
+category = "dev"
 optional = false
 python-versions = ">=2.7,!=3.0.*,!=3.1.*,!=3.2.*,!=3.3.*"
-version = "1.1.1"
 
 [[package]]
-category = "dev"
-description = "McCabe checker, plugin for flake8"
 name = "mccabe"
+version = "0.6.1"
+description = "McCabe checker, plugin for flake8"
+category = "dev"
 optional = false
 python-versions = "*"
-version = "0.6.1"
 
 [[package]]
-category = "dev"
-description = "Optional static typing for Python"
 name = "mypy"
+version = "0.790"
+description = "Optional static typing for Python"
+category = "dev"
 optional = false
 python-versions = ">=3.5"
-version = "0.761"
 
 [package.dependencies]
 mypy-extensions = ">=0.4.3,<0.5.0"
@@ -254,116 +254,116 @@ typing-extensions = ">=3.7.4"
 dmypy = ["psutil (>=4.0)"]
 
 [[package]]
-category = "dev"
-description = "Experimental type system extensions for programs checked with the mypy typechecker."
 name = "mypy-extensions"
+version = "0.4.3"
+description = "Experimental type system extensions for programs checked with the mypy typechecker."
+category = "dev"
 optional = false
 python-versions = "*"
-version = "0.4.3"
 
 [[package]]
-category = "dev"
-description = "Core utilities for Python packages"
 name = "packaging"
+version = "20.3"
+description = "Core utilities for Python packages"
+category = "dev"
 optional = false
 python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*"
-version = "20.3"
 
 [package.dependencies]
 pyparsing = ">=2.0.2"
 six = "*"
 
 [[package]]
-category = "dev"
-description = "File system general utilities"
 name = "pathtools"
+version = "0.1.2"
+description = "File system general utilities"
+category = "dev"
 optional = false
 python-versions = "*"
-version = "0.1.2"
 
 [[package]]
-category = "dev"
-description = "Python Build Reasonableness"
 name = "pbr"
+version = "5.4.4"
+description = "Python Build Reasonableness"
+category = "dev"
 optional = false
 python-versions = "*"
-version = "5.4.4"
 
 [[package]]
-category = "dev"
-description = "Utility that helps with local TCP ports managment. It can find an unused TCP localhost port and remember the association."
 name = "port-for"
+version = "0.3.1"
+description = "Utility that helps with local TCP ports managment. It can find an unused TCP localhost port and remember the association."
+category = "dev"
 optional = false
 python-versions = "*"
-version = "0.3.1"
 
 [[package]]
-category = "dev"
-description = "A python library and command-line tool to \"prettify\" and colorize XML."
 name = "pxml"
+version = "0.2.13"
+description = "A python library and command-line tool to \"prettify\" and colorize XML."
+category = "dev"
 optional = false
 python-versions = "*"
-version = "0.2.13"
 
 [package.dependencies]
 blessings = ">=1.5"
 six = ">=1.4.1"
 
 [[package]]
-category = "dev"
-description = "Python style guide checker"
 name = "pycodestyle"
+version = "2.5.0"
+description = "Python style guide checker"
+category = "dev"
 optional = false
 python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*"
-version = "2.5.0"
 
 [[package]]
-category = "dev"
-description = "passive checker of Python programs"
 name = "pyflakes"
+version = "2.1.1"
+description = "passive checker of Python programs"
+category = "dev"
 optional = false
 python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*"
-version = "2.1.1"
 
 [[package]]
-category = "dev"
-description = "Pygments is a syntax highlighting package written in Python."
 name = "pygments"
+version = "2.5.2"
+description = "Pygments is a syntax highlighting package written in Python."
+category = "dev"
 optional = false
 python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*, !=3.4.*"
-version = "2.5.2"
 
 [[package]]
-category = "dev"
-description = "Python parsing module"
 name = "pyparsing"
+version = "2.4.6"
+description = "Python parsing module"
+category = "dev"
 optional = false
 python-versions = ">=2.6, !=3.0.*, !=3.1.*, !=3.2.*"
-version = "2.4.6"
 
 [[package]]
-category = "dev"
-description = "World timezone definitions, modern and historical"
 name = "pytz"
+version = "2019.3"
+description = "World timezone definitions, modern and historical"
+category = "dev"
 optional = false
 python-versions = "*"
-version = "2019.3"
 
 [[package]]
-category = "dev"
-description = "YAML parser and emitter for Python"
 name = "pyyaml"
+version = "5.3"
+description = "YAML parser and emitter for Python"
+category = "dev"
 optional = false
 python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*, !=3.4.*"
-version = "5.3"
 
 [[package]]
-category = "main"
-description = "Python HTTP for Humans."
 name = "requests"
+version = "2.23.0"
+description = "Python HTTP for Humans."
+category = "main"
 optional = false
 python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*, !=3.4.*"
-version = "2.23.0"
 
 [package.dependencies]
 certifi = ">=2017.4.17"
@@ -376,56 +376,55 @@ security = ["pyOpenSSL (>=0.14)", "cryptography (>=1.3.4)"]
 socks = ["PySocks (>=1.5.6,<1.5.7 || >1.5.7)", "win-inet-pton"]
 
 [[package]]
-category = "main"
-description = "Cross platform (fast) DBM interface in python"
 name = "semidbm"
+version = "0.5.1"
+description = "Cross platform (fast) DBM interface in python"
+category = "main"
 optional = false
 python-versions = "*"
-version = "0.5.1"
 
 [[package]]
-category = "dev"
-description = "Python 2 and 3 compatibility utilities"
 name = "six"
+version = "1.14.0"
+description = "Python 2 and 3 compatibility utilities"
+category = "dev"
 optional = false
 python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*"
-version = "1.14.0"
 
 [[package]]
-category = "dev"
-description = "This package provides 26 stemmers for 25 languages generated from Snowball algorithms."
 name = "snowballstemmer"
+version = "2.0.0"
+description = "This package provides 26 stemmers for 25 languages generated from Snowball algorithms."
+category = "dev"
 optional = false
 python-versions = "*"
-version = "2.0.0"
 
 [[package]]
-category = "main"
-description = "A modern CSS selector implementation for Beautiful Soup."
 name = "soupsieve"
+version = "2.0"
+description = "A modern CSS selector implementation for Beautiful Soup."
+category = "main"
 optional = false
 python-versions = ">=3.5"
-version = "2.0"
 
 [[package]]
-category = "dev"
-description = "Python documentation generator"
 name = "sphinx"
+version = "2.4.4"
+description = "Python documentation generator"
+category = "dev"
 optional = false
 python-versions = ">=3.5"
-version = "2.4.4"
 
 [package.dependencies]
-Jinja2 = ">=2.3"
-Pygments = ">=2.0"
 alabaster = ">=0.7,<0.8"
 babel = ">=1.3,<2.0 || >2.0"
-colorama = ">=0.3.5"
+colorama = {version = ">=0.3.5", markers = "sys_platform == \"win32\""}
 docutils = ">=0.12"
 imagesize = "*"
+Jinja2 = ">=2.3"
 packaging = "*"
+Pygments = ">=2.0"
 requests = ">=2.5.0"
-setuptools = "*"
 snowballstemmer = ">=1.1"
 sphinxcontrib-applehelp = "*"
 sphinxcontrib-devhelp = "*"
@@ -439,144 +438,144 @@ docs = ["sphinxcontrib-websupport"]
 test = ["pytest (<5.3.3)", "pytest-cov", "html5lib", "flake8 (>=3.5.0)", "flake8-import-order", "mypy (>=0.761)", "docutils-stubs"]
 
 [[package]]
-category = "dev"
-description = "Watch a Sphinx directory and rebuild the documentation when a change is detected. Also includes a livereload enabled web server."
 name = "sphinx-autobuild"
+version = "0.7.1"
+description = "Watch a Sphinx directory and rebuild the documentation when a change is detected. Also includes a livereload enabled web server."
+category = "dev"
 optional = false
 python-versions = "*"
-version = "0.7.1"
 
 [package.dependencies]
-PyYAML = ">=3.10"
 argh = ">=0.24.1"
 livereload = ">=2.3.0"
 pathtools = ">=0.1.2"
 port-for = "0.3.1"
+PyYAML = ">=3.10"
 tornado = ">=3.2"
 watchdog = ">=0.7.1"
 
 [[package]]
-category = "dev"
-description = "Sphinx extension that automatically documents click applications"
 name = "sphinx-click"
+version = "2.3.1"
+description = "Sphinx extension that automatically documents click applications"
+category = "dev"
 optional = false
 python-versions = "*"
-version = "2.3.1"
 
 [package.dependencies]
 pbr = ">=2.0"
 sphinx = ">=1.5,<3.0"
 
 [[package]]
-category = "dev"
-description = "sphinxcontrib-applehelp is a sphinx extension which outputs Apple help books"
 name = "sphinxcontrib-applehelp"
+version = "1.0.2"
+description = "sphinxcontrib-applehelp is a sphinx extension which outputs Apple help books"
+category = "dev"
 optional = false
 python-versions = ">=3.5"
-version = "1.0.2"
 
 [package.extras]
 lint = ["flake8", "mypy", "docutils-stubs"]
 test = ["pytest"]
 
 [[package]]
-category = "dev"
-description = "sphinxcontrib-devhelp is a sphinx extension which outputs Devhelp document."
 name = "sphinxcontrib-devhelp"
+version = "1.0.2"
+description = "sphinxcontrib-devhelp is a sphinx extension which outputs Devhelp document."
+category = "dev"
 optional = false
 python-versions = ">=3.5"
-version = "1.0.2"
 
 [package.extras]
 lint = ["flake8", "mypy", "docutils-stubs"]
 test = ["pytest"]
 
 [[package]]
-category = "dev"
-description = "sphinxcontrib-htmlhelp is a sphinx extension which renders HTML help files"
 name = "sphinxcontrib-htmlhelp"
+version = "1.0.3"
+description = "sphinxcontrib-htmlhelp is a sphinx extension which renders HTML help files"
+category = "dev"
 optional = false
 python-versions = ">=3.5"
-version = "1.0.3"
 
 [package.extras]
 lint = ["flake8", "mypy", "docutils-stubs"]
 test = ["pytest", "html5lib"]
 
 [[package]]
-category = "dev"
-description = "A sphinx extension which renders display math in HTML via JavaScript"
 name = "sphinxcontrib-jsmath"
+version = "1.0.1"
+description = "A sphinx extension which renders display math in HTML via JavaScript"
+category = "dev"
 optional = false
 python-versions = ">=3.5"
-version = "1.0.1"
 
 [package.extras]
 test = ["pytest", "flake8", "mypy"]
 
 [[package]]
-category = "dev"
-description = "sphinxcontrib-qthelp is a sphinx extension which outputs QtHelp document."
 name = "sphinxcontrib-qthelp"
+version = "1.0.3"
+description = "sphinxcontrib-qthelp is a sphinx extension which outputs QtHelp document."
+category = "dev"
 optional = false
 python-versions = ">=3.5"
-version = "1.0.3"
 
 [package.extras]
 lint = ["flake8", "mypy", "docutils-stubs"]
 test = ["pytest"]
 
 [[package]]
-category = "dev"
-description = "sphinxcontrib-serializinghtml is a sphinx extension which outputs \"serialized\" HTML files (json and pickle)."
 name = "sphinxcontrib-serializinghtml"
+version = "1.1.4"
+description = "sphinxcontrib-serializinghtml is a sphinx extension which outputs \"serialized\" HTML files (json and pickle)."
+category = "dev"
 optional = false
 python-versions = ">=3.5"
-version = "1.1.4"
 
 [package.extras]
 lint = ["flake8", "mypy", "docutils-stubs"]
 test = ["pytest"]
 
 [[package]]
-category = "dev"
-description = "Tornado is a Python web framework and asynchronous networking library, originally developed at FriendFeed."
 name = "tornado"
+version = "6.0.4"
+description = "Tornado is a Python web framework and asynchronous networking library, originally developed at FriendFeed."
+category = "dev"
 optional = false
 python-versions = ">= 3.5"
-version = "6.0.4"
 
 [[package]]
-category = "dev"
-description = "a fork of Python 2 and 3 ast modules with type comment support"
 name = "typed-ast"
+version = "1.4.1"
+description = "a fork of Python 2 and 3 ast modules with type comment support"
+category = "dev"
 optional = false
 python-versions = "*"
-version = "1.4.1"
 
 [[package]]
-category = "dev"
-description = "Backported and Experimental Type Hints for Python 3.5+"
 name = "typing-extensions"
+version = "3.7.4.1"
+description = "Backported and Experimental Type Hints for Python 3.5+"
+category = "dev"
 optional = false
 python-versions = "*"
-version = "3.7.4.1"
 
 [[package]]
-category = "dev"
-description = "ASCII transliterations of Unicode text"
 name = "unidecode"
+version = "1.1.1"
+description = "ASCII transliterations of Unicode text"
+category = "dev"
 optional = false
 python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*"
-version = "1.1.1"
 
 [[package]]
-category = "main"
-description = "HTTP library with thread-safe connection pooling, file post, and more."
 name = "urllib3"
+version = "1.25.8"
+description = "HTTP library with thread-safe connection pooling, file post, and more."
+category = "main"
 optional = false
 python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*, !=3.4.*, <4"
-version = "1.25.8"
 
 [package.extras]
 brotli = ["brotlipy (>=0.6.0)"]
@@ -584,12 +583,12 @@ secure = ["pyOpenSSL (>=0.14)", "cryptography (>=1.3.4)", "idna (>=2.0.0)", "cer
 socks = ["PySocks (>=1.5.6,<1.5.7 || >1.5.7,<2.0)"]
 
 [[package]]
-category = "dev"
-description = "Filesystem events monitoring"
 name = "watchdog"
+version = "0.10.2"
+description = "Filesystem events monitoring"
+category = "dev"
 optional = false
 python-versions = "*"
-version = "0.10.2"
 
 [package.dependencies]
 pathtools = ">=0.1.1"
@@ -598,8 +597,9 @@ pathtools = ">=0.1.1"
 watchmedo = ["PyYAML (>=3.10)", "argh (>=0.24.1)"]
 
 [metadata]
-content-hash = "cd0d0527cc7e4d53ef830b5605d25524350acc155753fca6bcf915cfbea6bb77"
+lock-version = "1.1"
 python-versions = "^3.6"
+content-hash = "80938e17b9ec1b0851df31b03ee2ae587ac9bcb5f4da3c96c5354116471bbd2f"
 
 [metadata.files]
 alabaster = [
@@ -772,6 +772,11 @@ markupsafe = [
     {file = "MarkupSafe-1.1.1-cp37-cp37m-manylinux1_x86_64.whl", hash = "sha256:ba59edeaa2fc6114428f1637ffff42da1e311e29382d81b339c1817d37ec93c6"},
     {file = "MarkupSafe-1.1.1-cp37-cp37m-win32.whl", hash = "sha256:b00c1de48212e4cc9603895652c5c410df699856a2853135b3967591e4beebc2"},
     {file = "MarkupSafe-1.1.1-cp37-cp37m-win_amd64.whl", hash = "sha256:9bf40443012702a1d2070043cb6291650a0841ece432556f784f004937f0f32c"},
+    {file = "MarkupSafe-1.1.1-cp38-cp38-macosx_10_9_x86_64.whl", hash = "sha256:6788b695d50a51edb699cb55e35487e430fa21f1ed838122d722e0ff0ac5ba15"},
+    {file = "MarkupSafe-1.1.1-cp38-cp38-manylinux1_i686.whl", hash = "sha256:cdb132fc825c38e1aeec2c8aa9338310d29d337bebbd7baa06889d09a60a1fa2"},
+    {file = "MarkupSafe-1.1.1-cp38-cp38-manylinux1_x86_64.whl", hash = "sha256:13d3144e1e340870b25e7b10b98d779608c02016d5184cfb9927a9f10c689f42"},
+    {file = "MarkupSafe-1.1.1-cp38-cp38-win32.whl", hash = "sha256:596510de112c685489095da617b5bcbbac7dd6384aeebeda4df6025d0256a81b"},
+    {file = "MarkupSafe-1.1.1-cp38-cp38-win_amd64.whl", hash = "sha256:e8313f01ba26fbbe36c7be1966a7b7424942f670f38e666995b88d012765b9be"},
     {file = "MarkupSafe-1.1.1.tar.gz", hash = "sha256:29872e92839765e546828bb7754a68c418d927cd064fd4708fab9fe9c8bb116b"},
 ]
 mccabe = [
@@ -779,20 +784,20 @@ mccabe = [
     {file = "mccabe-0.6.1.tar.gz", hash = "sha256:dd8d182285a0fe56bace7f45b5e7d1a6ebcbf524e8f3bd87eb0f125271b8831f"},
 ]
 mypy = [
-    {file = "mypy-0.761-cp35-cp35m-macosx_10_6_x86_64.whl", hash = "sha256:7f672d02fffcbace4db2b05369142e0506cdcde20cea0e07c7c2171c4fd11dd6"},
-    {file = "mypy-0.761-cp35-cp35m-manylinux1_x86_64.whl", hash = "sha256:87c556fb85d709dacd4b4cb6167eecc5bbb4f0a9864b69136a0d4640fdc76a36"},
-    {file = "mypy-0.761-cp35-cp35m-win_amd64.whl", hash = "sha256:c6d27bd20c3ba60d5b02f20bd28e20091d6286a699174dfad515636cb09b5a72"},
-    {file = "mypy-0.761-cp36-cp36m-macosx_10_6_x86_64.whl", hash = "sha256:4b9365ade157794cef9685791032521233729cb00ce76b0ddc78749abea463d2"},
-    {file = "mypy-0.761-cp36-cp36m-manylinux1_x86_64.whl", hash = "sha256:634aef60b4ff0f650d3e59d4374626ca6153fcaff96ec075b215b568e6ee3cb0"},
-    {file = "mypy-0.761-cp36-cp36m-win_amd64.whl", hash = "sha256:53ea810ae3f83f9c9b452582261ea859828a9ed666f2e1ca840300b69322c474"},
-    {file = "mypy-0.761-cp37-cp37m-macosx_10_6_x86_64.whl", hash = "sha256:0a9a45157e532da06fe56adcfef8a74629566b607fa2c1ac0122d1ff995c748a"},
-    {file = "mypy-0.761-cp37-cp37m-manylinux1_x86_64.whl", hash = "sha256:7eadc91af8270455e0d73565b8964da1642fe226665dd5c9560067cd64d56749"},
-    {file = "mypy-0.761-cp37-cp37m-win_amd64.whl", hash = "sha256:e2bb577d10d09a2d8822a042a23b8d62bc3b269667c9eb8e60a6edfa000211b1"},
-    {file = "mypy-0.761-cp38-cp38-macosx_10_9_x86_64.whl", hash = "sha256:2c35cae79ceb20d47facfad51f952df16c2ae9f45db6cb38405a3da1cf8fc0a7"},
-    {file = "mypy-0.761-cp38-cp38-manylinux1_x86_64.whl", hash = "sha256:f97a605d7c8bc2c6d1172c2f0d5a65b24142e11a58de689046e62c2d632ca8c1"},
-    {file = "mypy-0.761-cp38-cp38-win_amd64.whl", hash = "sha256:a6bd44efee4dc8c3324c13785a9dc3519b3ee3a92cada42d2b57762b7053b49b"},
-    {file = "mypy-0.761-py3-none-any.whl", hash = "sha256:7e396ce53cacd5596ff6d191b47ab0ea18f8e0ec04e15d69728d530e86d4c217"},
-    {file = "mypy-0.761.tar.gz", hash = "sha256:85baab8d74ec601e86134afe2bcccd87820f79d2f8d5798c889507d1088287bf"},
+    {file = "mypy-0.790-cp35-cp35m-macosx_10_6_x86_64.whl", hash = "sha256:bd03b3cf666bff8d710d633d1c56ab7facbdc204d567715cb3b9f85c6e94f669"},
+    {file = "mypy-0.790-cp35-cp35m-manylinux1_x86_64.whl", hash = "sha256:2170492030f6faa537647d29945786d297e4862765f0b4ac5930ff62e300d802"},
+    {file = "mypy-0.790-cp35-cp35m-win_amd64.whl", hash = "sha256:e86bdace26c5fe9cf8cb735e7cedfe7850ad92b327ac5d797c656717d2ca66de"},
+    {file = "mypy-0.790-cp36-cp36m-macosx_10_9_x86_64.whl", hash = "sha256:e97e9c13d67fbe524be17e4d8025d51a7dca38f90de2e462243ab8ed8a9178d1"},
+    {file = "mypy-0.790-cp36-cp36m-manylinux1_x86_64.whl", hash = "sha256:0d34d6b122597d48a36d6c59e35341f410d4abfa771d96d04ae2c468dd201abc"},
+    {file = "mypy-0.790-cp36-cp36m-win_amd64.whl", hash = "sha256:72060bf64f290fb629bd4a67c707a66fd88ca26e413a91384b18db3876e57ed7"},
+    {file = "mypy-0.790-cp37-cp37m-macosx_10_9_x86_64.whl", hash = "sha256:eea260feb1830a627fb526d22fbb426b750d9f5a47b624e8d5e7e004359b219c"},
+    {file = "mypy-0.790-cp37-cp37m-manylinux1_x86_64.whl", hash = "sha256:c614194e01c85bb2e551c421397e49afb2872c88b5830e3554f0519f9fb1c178"},
+    {file = "mypy-0.790-cp37-cp37m-win_amd64.whl", hash = "sha256:0a0d102247c16ce93c97066443d11e2d36e6cc2a32d8ccc1f705268970479324"},
+    {file = "mypy-0.790-cp38-cp38-macosx_10_9_x86_64.whl", hash = "sha256:cf4e7bf7f1214826cf7333627cb2547c0db7e3078723227820d0a2490f117a01"},
+    {file = "mypy-0.790-cp38-cp38-manylinux1_x86_64.whl", hash = "sha256:af4e9ff1834e565f1baa74ccf7ae2564ae38c8df2a85b057af1dbbc958eb6666"},
+    {file = "mypy-0.790-cp38-cp38-win_amd64.whl", hash = "sha256:da56dedcd7cd502ccd3c5dddc656cb36113dd793ad466e894574125945653cea"},
+    {file = "mypy-0.790-py3-none-any.whl", hash = "sha256:2842d4fbd1b12ab422346376aad03ff5d0805b706102e475e962370f874a5122"},
+    {file = "mypy-0.790.tar.gz", hash = "sha256:2b21ba45ad9ef2e2eb88ce4aeadd0112d0f5026418324176fd494a6824b74975"},
 ]
 mypy-extensions = [
     {file = "mypy_extensions-0.4.3-py2.py3-none-any.whl", hash = "sha256:090fedd75945a69ae91ce1303b5824f428daf5a028d2f6ab8a299250a846f15d"},
@@ -849,6 +854,7 @@ pyyaml = [
     {file = "PyYAML-5.3.tar.gz", hash = "sha256:e9f45bd5b92c7974e59bcd2dcc8631a6b6cc380a904725fce7bc08872e691615"},
 ]
 requests = [
+    {file = "requests-2.23.0-py2.7.egg", hash = "sha256:5d2d0ffbb515f39417009a46c14256291061ac01ba8f875b90cad137de83beb4"},
     {file = "requests-2.23.0-py2.py3-none-any.whl", hash = "sha256:43999036bfa82904b6af1d99e4882b560e5e2c68e5c4b0aa03b655f3d7d73fee"},
     {file = "requests-2.23.0.tar.gz", hash = "sha256:b3f43d496c6daba4493e7c431722aeb7dbc6288f52a6e04e7b6023b0247817e6"},
 ]
diff --git a/pyproject.toml b/pyproject.toml
index 089b9e4..d137982 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -32,7 +32,7 @@ coverage = "^5.0.3"
 sphinx-autobuild = "^0.7.1"
 pxml = "^0.2.13"
 green = "^3.1.0"
-mypy = "^0.761"
+mypy = "^0.790"
 flake8 = "^3.7.9"
 
 [build-system]