code: def main():
      fig = plt.figure(figsize=(8, 10))
  
      # Label axes of a Plate Carree projection with a central longitude of 180:
      ax1 = fig.add_subplot(
          2, 1, 1, projection=ccrs.PlateCarree(central_longitude=180)
      )
      ax1.set_global()
      ax1.coastlines()
      ax1.set_xticks(
          [0, 60, 120, 180, 240, 300, 360], crs=ccrs.PlateCarree()
      )
      ax1.set_yticks(
          [-90, -60, -30, 0, 30, 60, 90], crs=ccrs.PlateCarree()
      )
      lon_formatter = LongitudeFormatter(zero_direction_label=True)
      lat_formatter = LatitudeFormatter()
      ax1.xaxis.set_major_formatter(lon_formatter)
      ax1.yaxis.set_major_formatter(lat_formatter)
  
      # Label axes of a Mercator projection without degree symbols in the labels
      # and formatting labels to include 1 decimal place:
      ax2 = fig.add_subplot(2, 1, 2, projection=ccrs.Mercator())
      ax2.set_global()
      ax2.coastlines()
      ax2.set_xticks(
          [-180, -120, -60, 0, 60, 120, 180], crs=ccrs.PlateCarree()
      )
      ax2.set_yticks(
          [-78.5, -60, -25.5, 25.5, 60, 80], crs=ccrs.PlateCarree()
      )
      lon_formatter = LongitudeFormatter(
          number_format=".1f",
          degree_symbol="",
          dateline_direction_label=True,
      )
      lat_formatter = LatitudeFormatter(
          number_format=".1f", degree_symbol=""
      )
      ax2.xaxis.set_major_formatter(lon_formatter)
      ax2.yaxis.set_major_formatter(lat_formatter)
  
      plt.show()
  
imports: import matplotlib.pyplot
  import cartopy.crs
  from cartopy.mpl.ticker import LatitudeFormatter, LongitudeFormatter
label_desc: Use image node_id 1 for calling a global function with example usage: main() without return types