class_docstr: Composes multiple transforms in a chain.
class_docstr_tok: ["Composes","multiple","transforms","in","a","chain","."]
code: def event_dim(self):
      return max(p.event_dim for p in self._parts) if self._parts else 0
  
imports: import weakref
  from ..distributions.utils import _clip_prob, cached_property, sum_right_most
  from ...block import HybridBlock
  from ....None import np, npx
label_desc: Use image node_id 4 for calling the ComposeTransform obj's underlying member method code with example usage: obj.event_dim() and returns: unknown