docstr: Gets current column names of input annotations.
code: def getInputCols(self):
      """Gets current column names of input annotations."""
      return self.getOrDefault(self.inputCols)
  
file_path: spark-nlp/python/sparknlp/common/annotator_properties.py
imports: from pyspark.ml.param import TypeConverters, Params, Param
label_desc: Use image node_id 3 for calling the AnnotatorProperties obj's underlying member method code with example usage: obj.getInputCols() and returns: self