factor out find subplots with given axis from Axes.getSubplots
factor out find subplots with given axis from Axes.getSubplots

iongroup/plotly.js,aburato/plotly.js,asolagmbh/plotly.js,asolagmbh/plotly.js,etpinard/plotly.js,plotly/plotly.js,iongroup/plotly.js,asolagmbh/plotly.js,aburato/plotly.js,etpinard/plotly.js,plotly/plotly.js,iongroup/plotly.js,plotly/plotly.js,plotly/plotly.js,etpinard/plotly.js