text: """This module provides a base traceset class."""
  from pathlib import Path
  from typing import List, Union, BinaryIO
  
  from public import public
  
  from ..trace import Trace
  
  
  @public
  class TraceSet:
      """Set of traces with some metadata."""
  
      _traces: List[Trace]
      _keys: List
  
      def __init__(self, *traces: Trace, **kwargs):
          self._traces = list(traces)
          for trace in self._traces:
              trace.trace_set = self
          self.__dict__.update(kwargs)
          self._keys = list(kwargs.keys())
  
      def __len__(self):
          """Return the number of traces."""
          return len(self._traces)
  
      def __getitem__(self, index) -> Trace:
          """Get the trace at `index`."""
          return self._traces[index]
  
      def __iter__(self):
          """Iterate over the traces."""
          yield from self._traces
  
      @classmethod
      def read(cls, input: Union[str, Path, bytes, BinaryIO]) -> "TraceSet":
          raise NotImplementedError
  
      @classmethod
      def inplace(cls, input: Union[str, Path, bytes, BinaryIO]) -> "TraceSet":
          raise NotImplementedError
  
      def write(self, output: Union[str, Path, BinaryIO]):
          raise NotImplementedError
  
      def __repr__(self):
          args = ", ".join(
              ["{}={!r}".format(key, getattr(self, key)) for key in self._keys]
          )
          return "TraceSet({})".format(args)
  