class_docstr: Rate index curve description.
class_docstr_tok: ["Rate","index","curve","description","."]
code: def __post_init__(self):
      self.currency = _init_currency(self.currency)
  
file_path: tf-quant-finance/tf_quant_finance/experimental/pricing_platform/framework/core/curve_types.py
imports: from typing import Union
  import dataclasses
  from tf_quant_finance.experimental.pricing_platform.framework.core import currencies
  from tf_quant_finance.experimental.pricing_platform.framework.core import rate_indices
label_desc: Use image node_id 1 for calling the RateIndexCurve obj's underlying member method code with example usage: obj.__post_init__() without return types