class_docstr: A wrapper around a dictionary of :class:`FairseqEncoder` objects.
  
  We run forward on each encoder and return a dictionary of outputs. The first
  encoder's dictionary is used for initialization.
  
  Args:
      encoders (dict): a dictionary of :class:`FairseqEncoder` objects.
code: def max_positions(self):
      return min(
          self.encoders[key].max_positions() for key in self.encoders
      )
  
imports: from .fairseq_encoder import FairseqEncoder
label_desc: Use image node_id 4 for calling the CompositeEncoder obj's underlying member method code with example usage: obj.max_positions() and returns: min