buildCall               Builds the Diagrammer function call.
buildLabels             Adds variable labels to the Diagrammer plot
                        function call.
buildPaths              Extracts the paths from the lavaan model.
embed_plot_pdf          Embeds a plot into an rmarkdown pdf
getNodes                Extracts the paths from the lavaan model.
lavaanPlot              Plots lavaan path model with DiagrammeR
save_png                Saves a plot as a png
sig_stars               Generates standard significance stars
