original_docstring: Return an object which wraps a batch read / query.
  
          :type read_timestamp: :class:`datetime.datetime`
          :param read_timestamp: Execute all reads at the given timestamp.
  
          :type exact_staleness: :class:`datetime.timedelta`
          :param exact_staleness: Execute all reads at a timestamp that is
                                  ``exact_staleness`` old.
  
          :rtype: :class:`~google.cloud.spanner_v1.database.BatchSnapshot`
          :returns: new wrapper
          
docstring: Return an object which wraps a batch read / query.
docstring_tokens: Return an object which wraps a batch read / query .
code: def batch_snapshot(self, read_timestamp=None, exact_staleness=None):
          """Return an object which wraps a batch read / query.
  
          :type read_timestamp: :class:`datetime.datetime`
          :param read_timestamp: Execute all reads at the given timestamp.
  
          :type exact_staleness: :class:`datetime.timedelta`
          :param exact_staleness: Execute all reads at a timestamp that is
                                  ``exact_staleness`` old.
  
          :rtype: :class:`~google.cloud.spanner_v1.database.BatchSnapshot`
          :returns: new wrapper
          """
          return BatchSnapshot(
              self, read_timestamp=read_timestamp, exact_staleness=exact_staleness
          )
code_tokens: def batch_snapshot ( self , read_timestamp = None , exact_staleness = None ) : return BatchSnapshot ( self , read_timestamp = read_timestamp , exact_staleness = exact_staleness )
short_docstring: Return an object which wraps a batch read / query.
short_docstring_tokens: Return an object which wraps a batch read / query .
comment: """Return an object which wraps a batch read / query.
  
          :type read_timestamp: :class:`datetime.datetime`
          :param read_timestamp: Execute all reads at the given timestamp.
  
          :type exact_staleness: :class:`datetime.timedelta`
          :param exact_staleness: Execute all reads at a timestamp that is
                                  ``exact_staleness`` old.
  
          :rtype: :class:`~google.cloud.spanner_v1.database.BatchSnapshot`
          :returns: new wrapper
          """