code: def _prop_descriptions(self):
      return """\
          type
              Sets the projection type. The projection type could be
              either "perspective" or "orthographic". The default is
              "perspective".
          """
  
imports: from plotly.basedatatypes import BaseLayoutHierarchyType
  import copy
label_desc: Use image node_id 3 for calling the Projection obj's underlying member method code with example usage: obj._prop_descriptions() and returns: str