class_docstr: A metric for evaluating results and data quality.
class_docstr_tok: ["A","metric","for","evaluating","results","and","data","quality","."]
docstr: Creates pre-built :class:`~textattack.Metric` that correspond to
  evaluation metrics for adversarial examples.
docstr_tok: ["Creates","pre-built",":","class",":","`","~textattack.Metric","`","that","correspond","to","evaluation","metrics","for","adversarial","examples","."]
code: def __init__(self, **kwargs):
      """Creates pre-built :class:`~textattack.Metric` that correspond to
      evaluation metrics for adversarial examples."""
      raise NotImplementedError()
  
imports: from abc import ABC, abstractmethod
label_desc: Use image node_id 1 to create a new Metric object from inherited base classes: ABC with example: obj = Metric()