code: def isPhysicalTime(self):
      type1 = np.dtype(self.mSignalFrame[self.mTime])
      return type1.kind == "M"
  
imports: import pandas
  import numpy
  from .None import Utils
  from .None import TimeSeries_Cutting
label_desc: Use image node_id 9 for calling the cTimeInfo obj's underlying member method code with example usage: obj.isPhysicalTime() and returns: unknown