I'm exploring the notebook examples provided in the CODEBK. In get_vessels_info.ipynb , there is this following code, which retrieves information on vessels entering a specific port:
for i in range(0, len(vessels_imo), batch_size):    
       temp = ld.get_data(vessels_imo[i:i+batch_size ["TR.AssetName;TR.AssetPolygonName;TR.AssetEventType;TR.AssetFacilityType;TR.AssetLocationType;TR.AssetDateTime, TR.AssetLocationDraught"],                                                  
{'SDate': from_date , 'EDate': today_date ,'ZT':'P', 'LT':'ENTRY'})    
temp = temp[temp['Polygon Name'].isin(port_list)]    
vessels_positions = pd.concat([vessels_positions,temp])
where port_list is a list of ports (in the example notebook, the default is set to Rotterdam). 
My question is, how can I get all available port names for a specific country (e.g., the Philippines)? I'm doing this manually through trial and error, testing different port names to see if they work.
Thank you.