Add imports

src/network_model.jl

 
+using MacroTools
+
 function get_multiplicand_and_species(expr::Expr)
     @assert expr.args[1] == :*
     multiplicand = reduce(*, expr.args[2:(end-1)])

src/plots.jl

 
+import Plots: plot, plot!, scatter!, hline!, Shape, text
+import Plots: current, palette, display, png, close, savefig
+
 """
     `plot(σ, var...; plot_transitions=false)`