[StructField("cdhid", StringType(), True), StructField("role_id", StringType(), True),
     StructField("role_desc", StringType(), True)])))])```

getting below issue:
"elementType [StructField(cdhid,StringType,true), StructField(role_id,StringType,true), StructField(role_desc,StringType,true)] should be an instance of <class 'pyspark.sql.types.DataType'> "

please help me. Thanks in advance