docstr: Evaluate expr and return a PropertySelection object representing the
  vertices that match the expression.
  
  Parameters
  ----------
  expr : string
      A python expression using property names and operators to select
      specific vertices.
  from_previous_selection : PropertySelection
      A PropertySelection instance returned from a prior call to
      select_vertices() that can be used to select a subset of vertices
      to evaluate the expression against. This allows for a selection of
      the intersection of vertices of multiple types (eg. all vertices
      that are both type A and type B)
  
  Returns
  -------
  PropertySelection instance to be used for calls to extract_subgraph()
  in order to construct a Graph containing only specific vertices.
  
  Examples
  --------
  >>>
code: def select_vertices(self, expr, from_previous_selection=None):
      """
      Evaluate expr and return a PropertySelection object representing the
      vertices that match the expression.
  
      Parameters
      ----------
      expr : string
          A python expression using property names and operators to select
          specific vertices.
      from_previous_selection : PropertySelection
          A PropertySelection instance returned from a prior call to
          select_vertices() that can be used to select a subset of vertices
          to evaluate the expression against. This allows for a selection of
          the intersection of vertices of multiple types (eg. all vertices
          that are both type A and type B)
  
      Returns
      -------
      PropertySelection instance to be used for calls to extract_subgraph()
      in order to construct a Graph containing only specific vertices.
  
      Examples
      --------
      >>>
      """
      raise NotImplementedError("not implemented")
  
imports: import numpy
  import importlib
  from cugraph_service_client.exceptions import CugraphServiceError
  from cugraph_service_client.remote_graph_utils import _transform_to_backend_dtype, _transform_to_backend_dtype_1d, _offsets_to_backend_dtype, MissingModule
label_desc: Use image node_id 34 for calling the RemoteGraph obj's underlying member method code with example usage: obj.select_vertices(expr, from_previous_selection) without return types