docstr: Return double fraction of all points added which are <= value.
  For more information see `TDIGEST.CDF <https://redis.io/commands/tdigest.cdf>`_.
docstr_tok: ["Return","double","fraction","of","all","points","added","which","are","<","=","value",".","For","more","information","see","`","TDIGEST.CDF","<","https",":","\/\/redis.io\/commands\/tdigest.cdf",">","`","_","."]
code: def cdf(self, key, value, *values):
      """
      Return double fraction of all points added which are <= value.
      For more information see `TDIGEST.CDF <https://redis.io/commands/tdigest.cdf>`_.
      """  # noqa
      return self.execute_command(TDIGEST_CDF, key, value, *values)
  
imports: from redis.client import NEVER_DECODE
  from redis.exceptions import ModuleError
  from redis.utils import HIREDIS_AVAILABLE, deprecated_function
label_desc: Use image node_id 8 for calling the TDigestCommands obj's underlying member method code with example usage: obj.cdf(key, value) and returns: self