code: def btdtr(a, b, x, out=None):
      warnings.warn(
          "Use cupyx.scipy.special.betainc instead.", DeprecationWarning
      )
      return _btdtr(a, b, x, out)
  
imports: import warnings
  from cupy import _core
  from cupyx.scipy.special._beta import incbet_preamble, incbi_preamble
  from cupyx.scipy.special._gammainc import _igam_preamble, _igami_preamble
label_desc: Use image node_id 1 for calling a global function with example usage: btdtr(a, b, x, out) and returns: _btdtr