formatted files with black #4

src/energy_demand/energy_demand.py

@@ -2,6 +2,7 @@
 #
 # SPDX-License-Identifier: AGPL-3.0-or-later
 
+
 class EnergyDemand:
 
     def __init__(self, energy_carrier, demand_in_gj_per_ton):

src/feedstock_demand/feedstock_demand.py

@@ -2,6 +2,7 @@
 #
 # SPDX-License-Identifier: AGPL-3.0-or-later
 
+
 class FeedstockDemand:
 
     def __init__(self, energy_carrier, feedstock_demand_in_gj_per_ton):

src/simulation/simulation.py

@@ -2,6 +2,7 @@
 #
 # SPDX-License-Identifier: AGPL-3.0-or-later
 
+
 class Simulation:
 
     def __init__(self, simulation_mode, time_span, regions, visitors):

src/steam_demand/steam_demand.py

@@ -2,6 +2,7 @@
 #
 # SPDX-License-Identifier: AGPL-3.0-or-later
 
+
 class SteamDemand:
 
     def __init__(self, energy_carrier, steam_demand_in_gj_per_ton):

src/utils/collection_utils.py

@@ -2,6 +2,7 @@
 #
 # SPDX-License-Identifier: AGPL-3.0-or-later
 
+
 def min_object(collection, min_function, default_object):
     # Loops over the collection and returns the default_object or an object of the collection,
     # for which min_function yields the minimum value. If several objects provide the same min,

src/utils/time_utils.py

@@ -2,6 +2,7 @@
 #
 # SPDX-License-Identifier: AGPL-3.0-or-later
 
+
 def create_time_span(start_year, end_year, year_increment):
     return list(range(start_year, end_year + 1, year_increment))