[pre-commit.ci] auto fixes from pre-commit.com hooks

for more information, see https://pre-commit.ci

doc/tutorials/plot_synthetic.py

@@ -4,6 +4,7 @@
 This page contains a tutorial, stepping the user through estimating a DEM.
 We don't use any real data here, but instead a series of fake lines that have Gaussian contribution functions.
 """
+
 ##################################################################
 # Start by importing the required modules
 import astropy.units as u

src/demcmc/dem.py

@@ -1,6 +1,7 @@
 """
 Classes for working with DEM data.
 """
+
 from __future__ import annotations
 
 from dataclasses import dataclass

src/demcmc/emission.py

@@ -1,6 +1,7 @@
 """
 Structures for storing and working with emission lines.
 """
+
 import functools
 from abc import ABC, abstractmethod, abstractproperty
 from dataclasses import dataclass

src/demcmc/mcmc.py

@@ -1,6 +1,7 @@
 """
 Functions for carrying out MCMC estimation of DEMs.
 """
+
 from typing import List, Sequence, Tuple
 
 import emcee

src/demcmc/sample_data.py

@@ -1,6 +1,7 @@
 """
 Load sample data.
 """
+
 from pathlib import Path
 from typing import Tuple
 

src/demcmc/units.py

@@ -1,6 +1,7 @@
 """
 Definition of global units used throughout demcmc.
 """
+
 import astropy.units as u
 
 u_temp = u.K