diff --git a/poetry.lock b/poetry.lock
index f20df74..3014a58 100644
--- a/poetry.lock
+++ b/poetry.lock
@@ -1,86 +1,90 @@
 [[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 = "Atomic file writes."
 name = "atomicwrites"
+version = "1.3.0"
+description = "Atomic file writes."
+category = "dev"
 optional = false
 python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*"
-version = "1.3.0"
 
 [[package]]
-category = "dev"
-description = "Classes Without Boilerplate"
 name = "attrs"
+version = "19.1.0"
+description = "Classes Without Boilerplate"
+category = "dev"
 optional = false
 python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*"
-version = "19.1.0"
+
+[package.extras]
+dev = ["coverage", "hypothesis", "pympler", "pytest", "six", "zope.interface", "sphinx", "pre-commit"]
+docs = ["sphinx", "zope.interface"]
+tests = ["coverage", "hypothesis", "pympler", "pytest", "six", "zope.interface"]
 
 [[package]]
-category = "dev"
-description = "Internationalization utilities"
 name = "babel"
+version = "2.7.0"
+description = "Internationalization utilities"
+category = "dev"
 optional = false
 python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*"
-version = "2.7.0"
 
 [package.dependencies]
 pytz = ">=2015.7"
 
 [[package]]
-category = "dev"
-description = "Python package for providing Mozilla's CA Bundle."
 name = "certifi"
+version = "2019.6.16"
+description = "Python package for providing Mozilla's CA Bundle."
+category = "dev"
 optional = false
 python-versions = "*"
-version = "2019.6.16"
 
 [[package]]
-category = "dev"
-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 = "dev"
 optional = false
 python-versions = "*"
-version = "3.0.4"
 
 [[package]]
-category = "dev"
-description = "Composable command line interface toolkit"
 name = "click"
+version = "7.0"
+description = "Composable command line interface toolkit"
+category = "dev"
 optional = false
 python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*"
-version = "7.0"
 
 [[package]]
-category = "dev"
-description = "Cross-platform colored terminal text."
-marker = "sys_platform == \"win32\""
 name = "colorama"
+version = "0.4.1"
+description = "Cross-platform colored terminal text."
+category = "dev"
 optional = false
 python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*"
-version = "0.4.1"
 
 [[package]]
-category = "dev"
-description = "Code coverage measurement for Python"
 name = "coverage"
+version = "4.5.3"
+description = "Code coverage measurement for Python"
+category = "dev"
 optional = false
 python-versions = ">=2.6, !=3.0.*, !=3.1.*, !=3.2.*, <4"
-version = "4.5.3"
 
 [[package]]
-category = "dev"
-description = "Style checker for Sphinx (or other) RST documentation"
 name = "doc8"
+version = "0.8.0"
+description = "Style checker for Sphinx (or other) RST documentation"
+category = "dev"
 optional = false
 python-versions = "*"
-version = "0.8.0"
 
 [package.dependencies]
 chardet = "*"
@@ -90,41 +94,44 @@ six = "*"
 stevedore = "*"
 
 [[package]]
-category = "dev"
-description = "Docutils -- Python Documentation Utilities"
 name = "docutils"
+version = "0.14"
+description = "Docutils -- Python Documentation Utilities"
+category = "dev"
 optional = false
 python-versions = "*"
-version = "0.14"
 
 [[package]]
-category = "dev"
-description = "A parser for Python dependency files"
 name = "dparse"
+version = "0.4.1"
+description = "A parser for Python dependency files"
+category = "dev"
 optional = false
 python-versions = "*"
-version = "0.4.1"
 
 [package.dependencies]
 packaging = "*"
 pyyaml = "*"
 six = "*"
 
+[package.extras]
+pipenv = ["pipenv"]
+
 [[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 = "dev"
-description = "the modular source code checker: pep8, pyflakes and co"
 name = "flake8"
+version = "3.7.8"
+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 = "3.7.8"
 
 [package.dependencies]
 entrypoints = ">=0.3.0,<0.4.0"
@@ -133,199 +140,216 @@ pycodestyle = ">=2.5.0,<2.6.0"
 pyflakes = ">=2.1.0,<2.2.0"
 
 [[package]]
-category = "dev"
-description = "Internationalized Domain Names in Applications (IDNA)"
 name = "idna"
+version = "2.8"
+description = "Internationalized Domain Names in Applications (IDNA)"
+category = "dev"
 optional = false
 python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*"
-version = "2.8"
 
 [[package]]
-category = "dev"
-description = "Getting image size from png/jpeg/jpeg2000/gif file"
 name = "imagesize"
+version = "1.1.0"
+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 = "1.1.0"
 
 [[package]]
-category = "dev"
-description = "Read metadata from Python packages"
 name = "importlib-metadata"
+version = "0.18"
+description = "Read metadata from Python packages"
+category = "dev"
 optional = false
 python-versions = ">=2.7,!=3.0,!=3.1,!=3.2,!=3.3"
-version = "0.18"
 
 [package.dependencies]
 zipp = ">=0.5"
 
+[package.extras]
+docs = ["sphinx", "docutils (==0.12)", "rst.linker"]
+
 [[package]]
-category = "dev"
-description = "A small but fast and easy to use stand-alone template engine written in pure python."
 name = "jinja2"
+version = "2.10.1"
+description = "A small but fast and easy to use stand-alone template engine written in pure python."
+category = "dev"
 optional = false
 python-versions = "*"
-version = "2.10.1"
 
 [package.dependencies]
 MarkupSafe = ">=0.23"
 
+[package.extras]
+i18n = ["Babel (>=0.8)"]
+
 [[package]]
-category = "dev"
-description = "Markdown and reStructuredText in a single file."
 name = "m2r"
+version = "0.2.1"
+description = "Markdown and reStructuredText in a single file."
+category = "dev"
 optional = false
 python-versions = "*"
-version = "0.2.1"
 
 [package.dependencies]
 docutils = "*"
 mistune = "*"
 
 [[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 = "The fastest markdown parser in pure Python"
 name = "mistune"
+version = "0.8.4"
+description = "The fastest markdown parser in pure Python"
+category = "dev"
 optional = false
 python-versions = "*"
-version = "0.8.4"
 
 [[package]]
-category = "dev"
-description = "More routines for operating on iterables, beyond itertools"
 name = "more-itertools"
+version = "7.0.0"
+description = "More routines for operating on iterables, beyond itertools"
+category = "dev"
 optional = false
 python-versions = ">=3.4"
-version = "7.0.0"
 
 [[package]]
-category = "dev"
-description = "Optional static typing for Python"
 name = "mypy"
+version = "0.720"
+description = "Optional static typing for Python"
+category = "dev"
 optional = false
 python-versions = "*"
-version = "0.720"
 
 [package.dependencies]
 mypy-extensions = ">=0.4.0,<0.5.0"
 typed-ast = ">=1.4.0,<1.5.0"
 typing-extensions = ">=3.7.4"
 
+[package.extras]
+dmypy = ["psutil (>=4.0)"]
+
 [[package]]
-category = "dev"
-description = "Experimental type system extensions for programs checked with the mypy typechecker."
 name = "mypy-extensions"
+version = "0.4.1"
+description = "Experimental type system extensions for programs checked with the mypy typechecker."
+category = "dev"
 optional = false
 python-versions = "*"
-version = "0.4.1"
 
 [[package]]
-category = "dev"
-description = "Core utilities for Python packages"
 name = "packaging"
+version = "19.0"
+description = "Core utilities for Python packages"
+category = "dev"
 optional = false
 python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*"
-version = "19.0"
 
 [package.dependencies]
 pyparsing = ">=2.0.2"
 six = "*"
 
 [[package]]
-category = "dev"
-description = "Python Build Reasonableness"
 name = "pbr"
+version = "5.3.0"
+description = "Python Build Reasonableness"
+category = "dev"
 optional = false
 python-versions = "*"
-version = "5.3.0"
 
 [[package]]
-category = "dev"
-description = "plugin and hook calling mechanisms for python"
 name = "pluggy"
+version = "0.12.0"
+description = "plugin and hook calling mechanisms for python"
+category = "dev"
 optional = false
 python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*"
-version = "0.12.0"
 
 [package.dependencies]
 importlib-metadata = ">=0.12"
 
+[package.extras]
+dev = ["pre-commit", "tox"]
+
 [[package]]
-category = "dev"
-description = "library with cross-python path, ini-parsing, io, code, log facilities"
 name = "py"
+version = "1.8.0"
+description = "library with cross-python path, ini-parsing, io, code, log facilities"
+category = "dev"
 optional = false
 python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*"
-version = "1.8.0"
 
 [[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 = "main"
-description = "Data validation and settings management using python 3.6 type hinting"
 name = "pydantic"
+version = "0.30"
+description = "Data validation and settings management using python 3.6 type hinting"
+category = "main"
 optional = false
 python-versions = ">=3.6"
-version = "0.30"
+
+[package.extras]
+email = ["email-validator (>=1.0.3)"]
+typing_extensions = ["typing-extensions (>=3.7.2)"]
+ujson = ["ujson (>=1.35)"]
 
 [[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 = "2.4.2"
+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 = "2.4.2"
 
 [[package]]
-category = "dev"
-description = "Python parsing module"
 name = "pyparsing"
+version = "2.4.0"
+description = "Python parsing module"
+category = "dev"
 optional = false
 python-versions = ">=2.6, !=3.0.*, !=3.1.*, !=3.2.*"
-version = "2.4.0"
 
 [[package]]
-category = "dev"
-description = "pytest: simple powerful testing with Python"
 name = "pytest"
+version = "5.0.1"
+description = "pytest: simple powerful testing with Python"
+category = "dev"
 optional = false
 python-versions = ">=3.5"
-version = "5.0.1"
 
 [package.dependencies]
 atomicwrites = ">=1.0"
 attrs = ">=17.4.0"
-colorama = "*"
+colorama = {version = "*", markers = "sys_platform == \"win32\""}
 importlib-metadata = ">=0.12"
 more-itertools = ">=4.0.0"
 packaging = "*"
@@ -333,64 +357,70 @@ pluggy = ">=0.12,<1.0"
 py = ">=1.5.0"
 wcwidth = "*"
 
+[package.extras]
+testing = ["argcomplete", "hypothesis (>=3.56)", "mock", "nose", "requests"]
+
 [[package]]
-category = "dev"
-description = "Pytest plugin for measuring coverage."
 name = "pytest-cov"
+version = "2.7.1"
+description = "Pytest plugin for measuring coverage."
+category = "dev"
 optional = false
 python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*"
-version = "2.7.1"
 
 [package.dependencies]
 coverage = ">=4.4"
 pytest = ">=3.6"
 
+[package.extras]
+testing = ["fields", "hunter", "process-tests (==2.0.2)", "six", "virtualenv"]
+
 [[package]]
-category = "dev"
-description = "pytest plugin for generating HTML reports"
 name = "pytest-html"
+version = "1.21.1"
+description = "pytest plugin for generating HTML reports"
+category = "dev"
 optional = false
 python-versions = "*"
-version = "1.21.1"
 
 [package.dependencies]
 pytest = ">=3.0"
 pytest-metadata = "*"
 
 [[package]]
-category = "dev"
-description = "pytest plugin for test session metadata"
 name = "pytest-metadata"
+version = "1.8.0"
+description = "pytest plugin for test session metadata"
+category = "dev"
 optional = false
 python-versions = "*"
-version = "1.8.0"
 
 [package.dependencies]
 pytest = ">=2.9.0"
 
 [[package]]
-category = "dev"
-description = "World timezone definitions, modern and historical"
 name = "pytz"
+version = "2019.1"
+description = "World timezone definitions, modern and historical"
+category = "dev"
 optional = false
 python-versions = "*"
-version = "2019.1"
 
 [[package]]
-category = "dev"
-description = "YAML parser and emitter for Python"
 name = "pyyaml"
+version = "5.1.1"
+description = "YAML parser and emitter for Python"
+category = "dev"
 optional = false
 python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*"
-version = "5.1.1"
 
 [[package]]
-category = "dev"
-description = "Python HTTP for Humans."
 name = "requests"
+version = "2.22.0"
+description = "Python HTTP for Humans."
+category = "dev"
 optional = false
 python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*, !=3.4.*"
-version = "2.22.0"
 
 [package.dependencies]
 certifi = ">=2017.4.17"
@@ -398,67 +428,69 @@ chardet = ">=3.0.2,<3.1.0"
 idna = ">=2.5,<2.9"
 urllib3 = ">=1.21.1,<1.25.0 || >1.25.0,<1.25.1 || >1.25.1,<1.26"
 
+[package.extras]
+security = ["pyOpenSSL (>=0.14)", "cryptography (>=1.3.4)", "idna (>=2.0.0)"]
+socks = ["PySocks (>=1.5.6,!=1.5.7)", "win-inet-pton"]
+
 [[package]]
-category = "dev"
-description = "reStructuredText linter"
 name = "restructuredtext-lint"
+version = "1.3.0"
+description = "reStructuredText linter"
+category = "dev"
 optional = false
 python-versions = "*"
-version = "1.3.0"
 
 [package.dependencies]
 docutils = ">=0.11,<1.0"
 
 [[package]]
-category = "dev"
-description = "Safety checks your installed dependencies for known security vulnerabilities."
 name = "safety"
+version = "1.8.5"
+description = "Safety checks your installed dependencies for known security vulnerabilities."
+category = "dev"
 optional = false
 python-versions = "*"
-version = "1.8.5"
 
 [package.dependencies]
 Click = ">=6.0"
 dparse = ">=0.4.1"
 packaging = "*"
 requests = "*"
-setuptools = "*"
 
 [[package]]
-category = "dev"
-description = "Python 2 and 3 compatibility utilities"
 name = "six"
+version = "1.12.0"
+description = "Python 2 and 3 compatibility utilities"
+category = "dev"
 optional = false
 python-versions = ">=2.6, !=3.0.*, !=3.1.*"
-version = "1.12.0"
 
 [[package]]
-category = "dev"
-description = "This package provides 16 stemmer algorithms (15 + Poerter English stemmer) generated from Snowball algorithms."
 name = "snowballstemmer"
+version = "1.2.1"
+description = "This package provides 16 stemmer algorithms (15 + Poerter English stemmer) generated from Snowball algorithms."
+category = "dev"
 optional = false
 python-versions = "*"
-version = "1.2.1"
 
 [[package]]
-category = "dev"
-description = "Python documentation generator"
 name = "sphinx"
+version = "2.1.2"
+description = "Python documentation generator"
+category = "dev"
 optional = false
 python-versions = ">=3.5"
-version = "2.1.2"
 
 [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 = "*"
@@ -467,217 +499,573 @@ sphinxcontrib-jsmath = "*"
 sphinxcontrib-qthelp = "*"
 sphinxcontrib-serializinghtml = "*"
 
+[package.extras]
+docs = ["sphinxcontrib-websupport"]
+test = ["pytest", "pytest-cov", "html5lib", "flake8 (>=3.5.0)", "flake8-import-order", "mypy (>=0.590)", "docutils-stubs"]
+
 [[package]]
-category = "dev"
-description = "Type hints (PEP 484) support for the Sphinx autodoc extension"
 name = "sphinx-autodoc-typehints"
+version = "1.6.0"
+description = "Type hints (PEP 484) support for the Sphinx autodoc extension"
+category = "dev"
 optional = false
 python-versions = "!=3.5.0, !=3.5.1"
-version = "1.6.0"
 
 [package.dependencies]
 Sphinx = ">=1.7"
 
+[package.extras]
+test = ["pytest (>=3.1.0)", "typing-extensions (>=3.5)"]
+
 [[package]]
-category = "dev"
-description = "A typlog Sphinx theme"
 name = "sphinx-typlog-theme"
+version = "0.7.3"
+description = "A typlog Sphinx theme"
+category = "dev"
 optional = false
 python-versions = "*"
-version = "0.7.3"
+
+[package.extras]
+dev = ["sphinx", "livereload"]
 
 [[package]]
-category = "dev"
-description = ""
 name = "sphinxcontrib-applehelp"
+version = "1.0.1"
+description = ""
+category = "dev"
 optional = false
 python-versions = "*"
-version = "1.0.1"
+
+[package.extras]
+test = ["pytest", "flake8", "mypy"]
 
 [[package]]
-category = "dev"
-description = ""
 name = "sphinxcontrib-devhelp"
+version = "1.0.1"
+description = ""
+category = "dev"
 optional = false
 python-versions = "*"
-version = "1.0.1"
+
+[package.extras]
+test = ["pytest", "flake8", "mypy"]
 
 [[package]]
-category = "dev"
-description = ""
 name = "sphinxcontrib-htmlhelp"
+version = "1.0.2"
+description = ""
+category = "dev"
 optional = false
 python-versions = "*"
-version = "1.0.2"
+
+[package.extras]
+test = ["pytest", "flake8", "mypy", "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 = ""
 name = "sphinxcontrib-qthelp"
+version = "1.0.2"
+description = ""
+category = "dev"
 optional = false
 python-versions = "*"
-version = "1.0.2"
+
+[package.extras]
+test = ["pytest", "flake8", "mypy"]
 
 [[package]]
-category = "dev"
-description = ""
 name = "sphinxcontrib-serializinghtml"
+version = "1.1.3"
+description = ""
+category = "dev"
 optional = false
 python-versions = "*"
-version = "1.1.3"
+
+[package.extras]
+test = ["pytest", "flake8", "mypy"]
 
 [[package]]
-category = "dev"
-description = "Mermaid diagrams in yours Sphinx powered docs"
 name = "sphinxcontrib.mermaid"
+version = "0.3.1"
+description = "Mermaid diagrams in yours Sphinx powered docs"
+category = "dev"
 optional = false
 python-versions = "*"
-version = "0.3.1"
 
 [[package]]
-category = "dev"
-description = "Manage dynamic plugins for Python applications"
 name = "stevedore"
+version = "1.30.1"
+description = "Manage dynamic plugins for Python applications"
+category = "dev"
 optional = false
 python-versions = "*"
-version = "1.30.1"
 
 [package.dependencies]
 pbr = ">=2.0.0,<2.1.0 || >2.1.0"
 six = ">=1.10.0"
 
 [[package]]
-category = "dev"
-description = "Style preserving TOML library"
 name = "tomlkit"
+version = "0.7.2"
+description = "Style preserving TOML library"
+category = "dev"
 optional = false
-python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*"
-version = "0.5.5"
+python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*, !=3.4.*"
 
 [[package]]
-category = "dev"
-description = "a fork of Python 2 and 3 ast modules with type comment support"
 name = "typed-ast"
+version = "1.4.0"
+description = "a fork of Python 2 and 3 ast modules with type comment support"
+category = "dev"
 optional = false
 python-versions = "*"
-version = "1.4.0"
 
 [[package]]
-category = "main"
-description = "Type Hints for Python"
 name = "typing"
+version = "3.7.4"
+description = "Type Hints for Python"
+category = "main"
 optional = false
 python-versions = "*"
-version = "3.7.4"
 
 [[package]]
-category = "main"
-description = "Backported and Experimental Type Hints for Python 3.5+"
 name = "typing-extensions"
+version = "3.7.4"
+description = "Backported and Experimental Type Hints for Python 3.5+"
+category = "main"
 optional = false
 python-versions = "*"
-version = "3.7.4"
 
 [package.dependencies]
 typing = ">=3.7.4"
 
 [[package]]
-category = "dev"
-description = "HTTP library with thread-safe connection pooling, file post, and more."
 name = "urllib3"
+version = "1.25.3"
+description = "HTTP library with thread-safe connection pooling, file post, and more."
+category = "dev"
 optional = false
 python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*, <4"
-version = "1.25.3"
+
+[package.extras]
+brotli = ["brotlipy (>=0.6.0)"]
+secure = ["pyOpenSSL (>=0.14)", "cryptography (>=1.3.4)", "idna (>=2.0.0)", "certifi", "ipaddress"]
+socks = ["PySocks (>=1.5.6,!=1.5.7,<2.0)"]
 
 [[package]]
-category = "dev"
-description = "Measures number of Terminal column cells of wide-character codes"
 name = "wcwidth"
+version = "0.1.7"
+description = "Measures number of Terminal column cells of wide-character codes"
+category = "dev"
 optional = false
 python-versions = "*"
-version = "0.1.7"
 
 [[package]]
-category = "dev"
-description = "Backport of pathlib-compatible object wrapper for zip files"
 name = "zipp"
+version = "0.5.1"
+description = "Backport of pathlib-compatible object wrapper for zip files"
+category = "dev"
 optional = false
 python-versions = ">=2.7"
-version = "0.5.1"
+
+[package.extras]
+docs = ["sphinx", "jaraco.packaging (>=3.2)", "rst.linker (>=1.9)"]
+testing = ["pathlib2", "contextlib2", "unittest2"]
 
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 python-versions = "^3.7"
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diff --git a/pyproject.toml b/pyproject.toml
index 5342367..6ff930c 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -41,7 +41,7 @@ pytest = "^5.0"
 pytest-html = "^1.21"
 pytest-cov = "^2.7"
 
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 sphinx = "^2.1"
 m2r = "^0.2.1"
 sphinx_autodoc_typehints = "^1.6"