diff --git a/poetry.lock b/poetry.lock
index 673272c..6ad5f3b 100644
--- a/poetry.lock
+++ b/poetry.lock
@@ -42,10 +42,10 @@ optional = false
 python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*, !=3.4.*"
 
 [package.extras]
-dev = ["coverage[toml] (>=5.0.2)", "hypothesis", "pympler", "pytest (>=4.3.0)", "six", "mypy", "pytest-mypy-plugins", "zope.interface", "furo", "sphinx", "sphinx-notfound-page", "pre-commit"]
-docs = ["furo", "sphinx", "zope.interface", "sphinx-notfound-page"]
-tests = ["coverage[toml] (>=5.0.2)", "hypothesis", "pympler", "pytest (>=4.3.0)", "six", "mypy", "pytest-mypy-plugins", "zope.interface"]
-tests_no_zope = ["coverage[toml] (>=5.0.2)", "hypothesis", "pympler", "pytest (>=4.3.0)", "six", "mypy", "pytest-mypy-plugins"]
+tests_no_zope = ["pytest-mypy-plugins", "mypy", "six", "pytest (>=4.3.0)", "pympler", "hypothesis", "coverage[toml] (>=5.0.2)"]
+tests = ["zope.interface", "pytest-mypy-plugins", "mypy", "six", "pytest (>=4.3.0)", "pympler", "hypothesis", "coverage[toml] (>=5.0.2)"]
+docs = ["sphinx-notfound-page", "zope.interface", "sphinx", "furo"]
+dev = ["pre-commit", "sphinx-notfound-page", "sphinx", "furo", "zope.interface", "pytest-mypy-plugins", "mypy", "six", "pytest (>=4.3.0)", "pympler", "hypothesis", "coverage[toml] (>=5.0.2)"]
 
 [[package]]
 name = "autorepr"
@@ -90,9 +90,9 @@ optional = false
 python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*"
 
 [package.extras]
-redis = ["redis (>=3.3.6,<4.0.0)"]
-memcached = ["python-memcached (>=1.59,<2.0)"]
 msgpack = ["msgpack-python (>=0.5,<0.6)"]
+memcached = ["python-memcached (>=1.59,<2.0)"]
+redis = ["redis (>=3.3.6,<4.0.0)"]
 
 [[package]]
 name = "certifi"
@@ -145,7 +145,7 @@ python-versions = ">=3.6"
 importlib-metadata = {version = "*", markers = "python_version < \"3.8\""}
 
 [package.extras]
-testing = ["sphinx", "flake8", "pytest", "pytest-cov", "pytest-virtualenv", "pytest-xdist"]
+testing = ["pytest-xdist", "pytest-virtualenv", "pytest-cov", "pytest", "flake8", "sphinx"]
 
 [[package]]
 name = "contextvars"
@@ -197,10 +197,10 @@ optional = false
 python-versions = "*"
 
 [package.extras]
-all = ["Sphinx (>=3)", "sphinx-rtd-theme (>=0.2)", "check-manifest (>=0.42)", "mock (>=1.3.0)", "pytest-cov (>=2.10.1)", "pytest-isort (>=1.2.0)", "sphinx (>=3)", "tox (>=3.7.0)", "numpy (>=1.13.0)", "numpy (>=1.15.0)", "numpy (>=1.18.0)", "pytest (==5.4.3)", "pytest-pycodestyle (>=2)", "pytest-pydocstyle (>=2)", "pytest (>=6)", "pytest-pycodestyle (>=2.2.0)", "pytest-pydocstyle (>=2.2.0)", "numpy (>=1.20.0)"]
-docs = ["Sphinx (>=3)", "sphinx-rtd-theme (>=0.2)"]
-numpy = ["numpy (>=1.13.0)", "numpy (>=1.15.0)", "numpy (>=1.18.0)", "numpy (>=1.20.0)"]
-tests = ["check-manifest (>=0.42)", "mock (>=1.3.0)", "pytest-cov (>=2.10.1)", "pytest-isort (>=1.2.0)", "sphinx (>=3)", "tox (>=3.7.0)", "pytest (==5.4.3)", "pytest-pycodestyle (>=2)", "pytest-pydocstyle (>=2)", "pytest (>=6)", "pytest-pycodestyle (>=2.2.0)", "pytest-pydocstyle (>=2.2.0)"]
+tests = ["pytest-pydocstyle (>=2.2.0)", "pytest-pycodestyle (>=2.2.0)", "pytest (>=6)", "pytest-pydocstyle (>=2)", "pytest-pycodestyle (>=2)", "pytest (==5.4.3)", "tox (>=3.7.0)", "sphinx (>=3)", "pytest-isort (>=1.2.0)", "pytest-cov (>=2.10.1)", "mock (>=1.3.0)", "check-manifest (>=0.42)"]
+numpy = ["numpy (>=1.20.0)", "numpy (>=1.18.0)", "numpy (>=1.15.0)", "numpy (>=1.13.0)"]
+docs = ["sphinx-rtd-theme (>=0.2)", "Sphinx (>=3)"]
+all = ["numpy (>=1.20.0)", "pytest-pydocstyle (>=2.2.0)", "pytest-pycodestyle (>=2.2.0)", "pytest (>=6)", "pytest-pydocstyle (>=2)", "pytest-pycodestyle (>=2)", "pytest (==5.4.3)", "numpy (>=1.18.0)", "numpy (>=1.15.0)", "numpy (>=1.13.0)", "tox (>=3.7.0)", "sphinx (>=3)", "pytest-isort (>=1.2.0)", "pytest-cov (>=2.10.1)", "mock (>=1.3.0)", "check-manifest (>=0.42)", "sphinx-rtd-theme (>=0.2)", "Sphinx (>=3)"]
 
 [[package]]
 name = "doc8"
@@ -300,7 +300,7 @@ attrs = ">=19.2.0"
 flake8 = ">=3.0.0"
 
 [package.extras]
-dev = ["coverage", "black", "hypothesis", "hypothesmith"]
+dev = ["hypothesmith", "hypothesis", "black", "coverage"]
 
 [[package]]
 name = "flake8-commas"
@@ -506,7 +506,7 @@ python-versions = ">=3.6"
 typing-extensions = {version = ">=3.7.4.3", markers = "python_version < \"3.8\""}
 
 [package.extras]
-test = ["flake8 (>=3.8.4,<3.9.0)", "pycodestyle (>=2.6.0,<2.7.0)", "mypy (>=0.910)", "pytest (>=6.2.4,<6.3.0)"]
+test = ["pytest (>=6.2.4,<6.3.0)", "mypy (>=0.910)", "pycodestyle (>=2.6.0,<2.7.0)", "flake8 (>=3.8.4,<3.9.0)"]
 
 [[package]]
 name = "importlib-metadata"
@@ -521,9 +521,9 @@ typing-extensions = {version = ">=3.6.4", markers = "python_version < \"3.8\""}
 zipp = ">=0.5"
 
 [package.extras]
-docs = ["sphinx", "jaraco.packaging (>=8.2)", "rst.linker (>=1.9)"]
+testing = ["importlib-resources (>=1.3)", "pytest-mypy", "pytest-black (>=0.3.7)", "pytest-perf (>=0.9.2)", "flufl.flake8", "pyfakefs", "pep517", "packaging", "pytest-enabler (>=1.0.1)", "pytest-cov", "pytest-flake8", "pytest-checkdocs (>=2.4)", "pytest (>=4.6)"]
 perf = ["ipython"]
-testing = ["pytest (>=4.6)", "pytest-checkdocs (>=2.4)", "pytest-flake8", "pytest-cov", "pytest-enabler (>=1.0.1)", "packaging", "pep517", "pyfakefs", "flufl.flake8", "pytest-perf (>=0.9.2)", "pytest-black (>=0.3.7)", "pytest-mypy", "importlib-resources (>=1.3)"]
+docs = ["rst.linker (>=1.9)", "jaraco.packaging (>=8.2)", "sphinx"]
 
 [[package]]
 name = "importlib-resources"
@@ -537,8 +537,8 @@ python-versions = ">=3.6"
 zipp = {version = ">=3.1.0", markers = "python_version < \"3.10\""}
 
 [package.extras]
-docs = ["sphinx", "jaraco.packaging (>=8.2)", "rst.linker (>=1.9)"]
-testing = ["pytest (>=6)", "pytest-checkdocs (>=2.4)", "pytest-flake8", "pytest-cov", "pytest-enabler (>=1.0.1)", "pytest-black (>=0.3.7)", "pytest-mypy"]
+testing = ["pytest-mypy", "pytest-black (>=0.3.7)", "pytest-enabler (>=1.0.1)", "pytest-cov", "pytest-flake8", "pytest-checkdocs (>=2.4)", "pytest (>=6)"]
+docs = ["rst.linker (>=1.9)", "jaraco.packaging (>=8.2)", "sphinx"]
 
 [[package]]
 name = "iniconfig"
@@ -557,9 +557,9 @@ optional = false
 python-versions = ">=3.6,<4.0"
 
 [package.extras]
-pipfile_deprecated_finder = ["pipreqs", "requirementslib"]
-requirements_deprecated_finder = ["pipreqs", "pip-api"]
 colors = ["colorama (>=0.4.3,<0.5.0)"]
+requirements_deprecated_finder = ["pip-api", "pipreqs"]
+pipfile_deprecated_finder = ["requirementslib", "pipreqs"]
 
 [[package]]
 name = "jinja2"
@@ -597,7 +597,7 @@ colorama = {version = ">=0.3.4", markers = "sys_platform == \"win32\""}
 win32-setctime = {version = ">=1.0.0", markers = "sys_platform == \"win32\""}
 
 [package.extras]
-dev = ["codecov (>=2.0.15)", "colorama (>=0.3.4)", "flake8 (>=3.7.7)", "tox (>=3.9.0)", "tox-travis (>=0.12)", "pytest (>=4.6.2)", "pytest-cov (>=2.7.1)", "Sphinx (>=2.2.1)", "sphinx-autobuild (>=0.7.1)", "sphinx-rtd-theme (>=0.4.3)", "black (>=19.10b0)", "isort (>=5.1.1)"]
+dev = ["isort (>=5.1.1)", "black (>=19.10b0)", "sphinx-rtd-theme (>=0.4.3)", "sphinx-autobuild (>=0.7.1)", "Sphinx (>=2.2.1)", "pytest-cov (>=2.7.1)", "pytest (>=4.6.2)", "tox-travis (>=0.12)", "tox (>=3.9.0)", "flake8 (>=3.7.7)", "colorama (>=0.3.4)", "codecov (>=2.0.15)"]
 
 [[package]]
 name = "m2r2"
@@ -628,10 +628,10 @@ optional = false
 python-versions = ">=3.5"
 
 [package.extras]
-dev = ["pytest", "pytz", "simplejson", "mypy (==0.910)", "flake8 (==3.9.2)", "flake8-bugbear (==21.4.3)", "pre-commit (>=2.4,<3.0)", "tox"]
-docs = ["sphinx (==4.1.1)", "sphinx-issues (==1.2.0)", "alabaster (==0.7.12)", "sphinx-version-warning (==1.1.2)", "autodocsumm (==0.2.6)"]
-lint = ["mypy (==0.910)", "flake8 (==3.9.2)", "flake8-bugbear (==21.4.3)", "pre-commit (>=2.4,<3.0)"]
-tests = ["pytest", "pytz", "simplejson"]
+tests = ["simplejson", "pytz", "pytest"]
+lint = ["pre-commit (>=2.4,<3.0)", "flake8-bugbear (==21.4.3)", "flake8 (==3.9.2)", "mypy (==0.910)"]
+docs = ["autodocsumm (==0.2.6)", "sphinx-version-warning (==1.1.2)", "alabaster (==0.7.12)", "sphinx-issues (==1.2.0)", "sphinx (==4.1.1)"]
+dev = ["tox", "pre-commit (>=2.4,<3.0)", "flake8-bugbear (==21.4.3)", "flake8 (==3.9.2)", "mypy (==0.910)", "simplejson", "pytz", "pytest"]
 
 [[package]]
 name = "marshmallow-polyfield"
@@ -683,8 +683,8 @@ typed-ast = {version = ">=1.4.0,<2", markers = "python_version < \"3.8\""}
 typing-extensions = ">=3.7.4"
 
 [package.extras]
-dmypy = ["psutil (>=4.0)"]
 python2 = ["typed-ast (>=1.4.0,<2)"]
+dmypy = ["psutil (>=4.0)"]
 
 [[package]]
 name = "mypy-extensions"
@@ -727,9 +727,9 @@ toml = "*"
 tomlkit = "*"
 
 [package.extras]
-test = ["freezegun", "pytest-cov", "pytest-socket", "pytest-testmon", "pytest-watch", "pytest", "responses", "testfixtures"]
+test = ["testfixtures", "responses", "pytest", "pytest-watch", "pytest-testmon", "pytest-socket", "pytest-cov", "freezegun"]
+doc = ["sphobjinv", "sphinx-rtd-theme", "sphinx"]
 lint = ["pylint"]
-doc = ["sphinx", "sphinx-rtd-theme", "sphobjinv"]
 
 [[package]]
 name = "packaging"
@@ -773,8 +773,8 @@ python-versions = ">=3.6"
 importlib-metadata = {version = ">=0.12", markers = "python_version < \"3.8\""}
 
 [package.extras]
-dev = ["pre-commit", "tox"]
-testing = ["pytest", "pytest-benchmark"]
+testing = ["pytest-benchmark", "pytest"]
+dev = ["tox", "pre-commit"]
 
 [[package]]
 name = "py"
@@ -804,9 +804,9 @@ python-versions = ">=3.6"
 dataclasses = {version = ">=0.6", markers = "python_version < \"3.7\""}
 
 [package.extras]
-dotenv = ["python-dotenv (>=0.10.4)"]
-email = ["email-validator (>=1.0.3)"]
 typing_extensions = ["typing-extensions (>=3.7.2)"]
+email = ["email-validator (>=1.0.3)"]
+dotenv = ["python-dotenv (>=0.10.4)"]
 
 [[package]]
 name = "pydocstyle"
@@ -866,7 +866,7 @@ py = ">=1.8.2"
 toml = "*"
 
 [package.extras]
-testing = ["argcomplete", "hypothesis (>=3.56)", "mock", "nose", "requests", "xmlschema"]
+testing = ["xmlschema", "requests", "nose", "mock", "hypothesis (>=3.56)", "argcomplete"]
 
 [[package]]
 name = "pytest-cov"
@@ -881,7 +881,7 @@ coverage = {version = ">=5.2.1", extras = ["toml"]}
 pytest = ">=4.6"
 
 [package.extras]
-testing = ["fields", "hunter", "process-tests", "six", "pytest-xdist", "virtualenv"]
+testing = ["virtualenv", "pytest-xdist", "six", "process-tests", "hunter", "fields"]
 
 [[package]]
 name = "pytest-randomly"
@@ -940,8 +940,8 @@ idna = {version = ">=2.5,<4", markers = "python_version >= \"3\""}
 urllib3 = ">=1.21.1,<1.27"
 
 [package.extras]
-socks = ["PySocks (>=1.5.6,!=1.5.7)", "win-inet-pton"]
 use_chardet_on_py3 = ["chardet (>=3.0.2,<5)"]
+socks = ["win-inet-pton", "PySocks (>=1.5.6,!=1.5.7)"]
 
 [[package]]
 name = "restructuredtext-lint"
@@ -1050,9 +1050,9 @@ sphinxcontrib-qthelp = "*"
 sphinxcontrib-serializinghtml = ">=1.1.5"
 
 [package.extras]
+test = ["typed-ast", "cython", "html5lib", "pytest-cov", "pytest"]
+lint = ["types-requests", "types-pkg-resources", "types-typed-ast", "docutils-stubs", "mypy (>=0.900)", "isort", "flake8 (>=3.5.0)"]
 docs = ["sphinxcontrib-websupport"]
-lint = ["flake8 (>=3.5.0)", "isort", "mypy (>=0.900)", "docutils-stubs", "types-typed-ast", "types-pkg-resources", "types-requests"]
-test = ["pytest", "pytest-cov", "html5lib", "cython", "typed-ast"]
 
 [[package]]
 name = "sphinx-autodoc-typehints"
@@ -1066,8 +1066,8 @@ python-versions = ">=3.6"
 Sphinx = ">=3.0"
 
 [package.extras]
-test = ["pytest (>=3.1.0)", "typing-extensions (>=3.5)", "sphobjinv (>=2.0)", "Sphinx (>=3.2.0)", "dataclasses"]
 type_comments = ["typed-ast (>=1.4.0)"]
+test = ["dataclasses", "Sphinx (>=3.2.0)", "sphobjinv (>=2.0)", "typing-extensions (>=3.5)", "pytest (>=3.1.0)"]
 
 [[package]]
 name = "sphinxcontrib-applehelp"
@@ -1078,8 +1078,8 @@ optional = false
 python-versions = ">=3.5"
 
 [package.extras]
-lint = ["flake8", "mypy", "docutils-stubs"]
 test = ["pytest"]
+lint = ["docutils-stubs", "mypy", "flake8"]
 
 [[package]]
 name = "sphinxcontrib-devhelp"
@@ -1090,8 +1090,8 @@ optional = false
 python-versions = ">=3.5"
 
 [package.extras]
-lint = ["flake8", "mypy", "docutils-stubs"]
 test = ["pytest"]
+lint = ["docutils-stubs", "mypy", "flake8"]
 
 [[package]]
 name = "sphinxcontrib-htmlhelp"
@@ -1102,8 +1102,8 @@ optional = false
 python-versions = ">=3.6"
 
 [package.extras]
-lint = ["flake8", "mypy", "docutils-stubs"]
-test = ["pytest", "html5lib"]
+test = ["html5lib", "pytest"]
+lint = ["docutils-stubs", "mypy", "flake8"]
 
 [[package]]
 name = "sphinxcontrib-jsmath"
@@ -1114,7 +1114,7 @@ optional = false
 python-versions = ">=3.5"
 
 [package.extras]
-test = ["pytest", "flake8", "mypy"]
+test = ["mypy", "flake8", "pytest"]
 
 [[package]]
 name = "sphinxcontrib-qthelp"
@@ -1125,8 +1125,8 @@ optional = false
 python-versions = ">=3.5"
 
 [package.extras]
-lint = ["flake8", "mypy", "docutils-stubs"]
 test = ["pytest"]
+lint = ["docutils-stubs", "mypy", "flake8"]
 
 [[package]]
 name = "sphinxcontrib-serializinghtml"
@@ -1137,8 +1137,8 @@ optional = false
 python-versions = ">=3.5"
 
 [package.extras]
-lint = ["flake8", "mypy", "docutils-stubs"]
 test = ["pytest"]
+lint = ["docutils-stubs", "mypy", "flake8"]
 
 [[package]]
 name = "stevedore"
@@ -1161,9 +1161,9 @@ optional = false
 python-versions = "*"
 
 [package.extras]
-build = ["setuptools-git", "wheel", "twine"]
-docs = ["sphinx", "zope.component", "sybil", "twisted", "mock", "django (<2)", "django"]
-test = ["pytest (>=3.6)", "pytest-cov", "pytest-django", "zope.component", "sybil", "twisted", "mock", "django (<2)", "django"]
+test = ["django", "django (<2)", "mock", "twisted", "sybil", "zope.component", "pytest-django", "pytest-cov", "pytest (>=3.6)"]
+docs = ["django", "django (<2)", "mock", "twisted", "sybil", "zope.component", "sphinx"]
+build = ["twine", "wheel", "setuptools-git"]
 
 [[package]]
 name = "text-unidecode"
@@ -1191,11 +1191,11 @@ python-versions = ">=3.6"
 
 [[package]]
 name = "tomlkit"
-version = "0.7.2"
+version = "0.11.4"
 description = "Style preserving TOML library"
 category = "dev"
 optional = false
-python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*, !=3.4.*"
+python-versions = ">=3.6,<4.0"
 
 [[package]]
 name = "typed-ast"
@@ -1222,9 +1222,9 @@ optional = false
 python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*, !=3.4.*, <4"
 
 [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)"]
+secure = ["ipaddress", "certifi", "idna (>=2.0.0)", "cryptography (>=1.3.4)", "pyOpenSSL (>=0.14)"]
+brotli = ["brotlipy (>=0.6.0)"]
 
 [[package]]
 name = "wemake-python-styleguide"
@@ -1265,7 +1265,7 @@ optional = false
 python-versions = ">=3.5"
 
 [package.extras]
-dev = ["pytest (>=4.6.2)", "black (>=19.3b0)"]
+dev = ["black (>=19.3b0)", "pytest (>=4.6.2)"]
 
 [[package]]
 name = "zipp"
@@ -1276,13 +1276,13 @@ optional = false
 python-versions = ">=3.6"
 
 [package.extras]
-docs = ["sphinx", "jaraco.packaging (>=8.2)", "rst.linker (>=1.9)"]
-testing = ["pytest (>=4.6)", "pytest-checkdocs (>=2.4)", "pytest-flake8", "pytest-cov", "pytest-enabler (>=1.0.1)", "jaraco.itertools", "func-timeout", "pytest-black (>=0.3.7)", "pytest-mypy"]
+testing = ["pytest-mypy", "pytest-black (>=0.3.7)", "func-timeout", "jaraco.itertools", "pytest-enabler (>=1.0.1)", "pytest-cov", "pytest-flake8", "pytest-checkdocs (>=2.4)", "pytest (>=4.6)"]
+docs = ["rst.linker (>=1.9)", "jaraco.packaging (>=8.2)", "sphinx"]
 
 [metadata]
 lock-version = "1.1"
 python-versions = "^3.6"
-content-hash = "58f42add1d8304d3155745c00202ada2209279b43e8b83ffd7c787b536c8dc4d"
+content-hash = "445046ce551a901c38320df85d58bbd7684bef2c996f0986baebd82260a47f27"
 
 [metadata.files]
 aiocontextvars = [
@@ -1915,8 +1915,8 @@ tomli = [
     {file = "tomli-1.2.2.tar.gz", hash = "sha256:c6ce0015eb38820eaf32b5db832dbc26deb3dd427bd5f6556cf0acac2c214fee"},
 ]
 tomlkit = [
-    {file = "tomlkit-0.7.2-py2.py3-none-any.whl", hash = "sha256:173ad840fa5d2aac140528ca1933c29791b79a374a0861a80347f42ec9328117"},
-    {file = "tomlkit-0.7.2.tar.gz", hash = "sha256:d7a454f319a7e9bd2e249f239168729327e4dd2d27b17dc68be264ad1ce36754"},
+    {file = "tomlkit-0.11.4-py3-none-any.whl", hash = "sha256:25d4e2e446c453be6360c67ddfb88838cfc42026322770ba13d1fbd403a93a5c"},
+    {file = "tomlkit-0.11.4.tar.gz", hash = "sha256:3235a9010fae54323e727c3ac06fb720752fe6635b3426e379daec60fbd44a83"},
 ]
 typed-ast = [
     {file = "typed_ast-1.4.3-cp35-cp35m-manylinux1_i686.whl", hash = "sha256:2068531575a125b87a41802130fa7e29f26c09a2833fea68d9a40cf33902eba6"},
diff --git a/pyproject.toml b/pyproject.toml
index f36313f..eab29d2 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -49,4 +49,4 @@ sphinx = "^4.3.1"
 sphinx-autodoc-typehints = "^1.12"
 doc8 = "^0.10"
 m2r2 = "^0.3"
-tomlkit = "^0.7"
+tomlkit = "^0.11"