class_docstr: A basic model agnostic tokenizer.
      
docstr: Create a tokenizer based on a simple splitting pattern.
          
code: def __init__(self, split_pattern=r"\W+"):
      """Create a tokenizer based on a simple splitting pattern."""
      self.split_pattern = re.compile(split_pattern)
  
imports: import math
  import re
  import numpy
  from .._serializable import Deserializer, Serializer
  from ..utils import safe_isinstance
  from ..utils.transformers import SENTENCEPIECE_TOKENIZERS, getattr_silent, parse_prefix_suffix_for_tokenizer
  from ._masker import Masker
label_desc: Use image node_id 1 to create a new SimpleTokenizer object  with example: obj = SimpleTokenizer(split_pattern)