I was trying to access databricks and do DDL/DML operations using databricks unity catalog open apis. The create schema and select tables are working, but create table is not working due to below issues, could you please help?

I was using pyspark sql for the same as mentioned in 

https://community.databricks.com/t5/technical-blog/integrating-apache-spark-with-databricks-unity-ca...

Traceback (most recent call last):
File "/home/spark/shared/user-libs/spark/di-databricks.py", line 89, in <module>
main()
File "/home/spark/shared/user-libs/spark/di-databricks.py", line 77, in main
view_data(spark)
File "/home/spark/shared/user-libs/spark/di-databricks.py", line 70, in view_data
spark.sql(f"create table datatest.dischema.demoTab1(id int, name VARCHAR(10), age int)").show()
File "/opt/ibm/spark/python/pyspark/sql/session.py", line 1440, in sql
return DataFrame(self._jsparkSession.sql(sqlQuery, litArgs), self)
File "/opt/ibm/spark/python/lib/py4j-0.10.9.7-src.zip/py4j/java_gateway.py", line 1322, in __call__
File "/opt/ibm/spark/python/pyspark/errors/exceptions/captured.py", line 169, in deco
return f(*a, **kw)
File "/opt/ibm/spark/python/lib/py4j-0.10.9.7-src.zip/py4j/protocol.py", line 326, in get_return_value
py4j.protocol.Py4JJavaError: An error occurred while calling o132.sql.
: java.lang.AssertionError: assertion failed
at scala.Predef$.assert(Predef.scala:208)
at io.unitycatalog.spark.UCProxy.createTable(UCSingleCatalog.scala:299)
at org.apache.spark.sql.connector.catalog.DelegatingCatalogExtension.createTable(DelegatingCatalogExtension.java:102)
at org.apache.spark.sql.delta.catalog.DeltaCatalog.createCatalogTable(DeltaCatalog.scala:256)
at org.apache.spark.sql.delta.catalog.DeltaCatalog.$anonfun$createTable$1(DeltaCatalog.scala:289)
at org.apache.spark.sql.delta.metering.DeltaLogging.recordFrameProfile(DeltaLogging.scala:140)
at org.apache.spark.sql.delta.metering.DeltaLogging.recordFrameProfile$(DeltaLogging.scala:138)
at org.apache.spark.sql.delta.catalog.DeltaCatalog.recordFrameProfile(DeltaCatalog.scala:57)
at org.apache.spark.sql.delta.catalog.DeltaCatalog.createTable(DeltaCatalog.scala:278)
at org.apache.spark.sql.delta.catalog.DeltaCatalog.createTable(DeltaCatalog.scala:269)
at io.unitycatalog.spark.UCSingleCatalog.createTable(UCSingleCatalog.scala:101)
at org.apache.spark.sql.execution.datasources.v2.CreateTableExec.run(CreateTableExec.scala:44)
at org.apache.spark.sql.execution.datasources.v2.V2CommandExec.result$lzycompute(V2CommandExec.scala:43)
at org.apache.spark.sql.execution.datasources.v2.V2CommandExec.result(V2CommandExec.scala:43)
at org.apache.spark.sql.execution.datasources.v2.V2CommandExec.executeCollect(V2CommandExec.scala:49)
at org.apache.spark.sql.execution.QueryExecution$$anonfun$eagerlyExecuteCommands$1.$anonfun$applyOrElse$1(QueryExecution.scala:98)
at org.apache.spark.sql.execution.SQLExecution$.$anonfun$withNewExecutionId$6(SQLExecution.scala:118)
at org.apache.spark.sql.execution.SQLExecution$.withSQLConfPropagated(SQLExecution.scala:195)
at org.apache.spark.sql.execution.SQLExecution$.$anonfun$withNewExecutionId$1(SQLExecution.scala:103)
at org.apache.spark.sql.SparkSession.withActive(SparkSession.scala:827)
at org.apache.spark.sql.execution.SQLExecution$.withNewExecutionId(SQLExecution.scala:65)
at org.apache.spark.sql.execution.QueryExecution$$anonfun$eagerlyExecuteCommands$1.applyOrElse(QueryExecution.scala:98)
at org.apache.spark.sql.execution.QueryExecution$$anonfun$eagerlyExecuteCommands$1.applyOrElse(QueryExecution.scala:94)
at org.apache.spark.sql.catalyst.trees.TreeNode.$anonfun$transformDownWithPruning$1(TreeNode.scala:512)
at org.apache.spark.sql.catalyst.trees.CurrentOrigin$.withOrigin(TreeNode.scala:104)
at org.apache.spark.sql.catalyst.trees.TreeNode.transformDownWithPruning(TreeNode.scala:512)
at org.apache.spark.sql.catalyst.plans.logical.LogicalPlan.org$apache$spark$sql$catalyst$plans$logical$AnalysisHelper$$super$transformDownWithPruning(LogicalPlan.scala:31)
at org.apache.spark.sql.catalyst.plans.logical.AnalysisHelper.transformDownWithPruning(AnalysisHelper.scala:267)
at org.apache.spark.sql.catalyst.plans.logical.AnalysisHelper.transformDownWithPruning$(AnalysisHelper.scala:263)
at org.apache.spark.sql.catalyst.plans.logical.LogicalPlan.transformDownWithPruning(LogicalPlan.scala:31)
at org.apache.spark.sql.catalyst.plans.logical.LogicalPlan.transformDownWithPruning(LogicalPlan.scala:31)
at org.apache.spark.sql.catalyst.trees.TreeNode.transformDown(TreeNode.scala:488)
at org.apache.spark.sql.execution.QueryExecution.eagerlyExecuteCommands(QueryExecution.scala:94)
at org.apache.spark.sql.execution.QueryExecution.commandExecuted$lzycompute(QueryExecution.scala:81)
at org.apache.spark.sql.execution.QueryExecution.commandExecuted(QueryExecution.scala:79)
at org.apache.spark.sql.Dataset.<init>(Dataset.scala:218)
at org.apache.spark.sql.Dataset$.$anonfun$ofRows$2(Dataset.scala:98)
at org.apache.spark.sql.SparkSession.withActive(SparkSession.scala:827)
at org.apache.spark.sql.Dataset$.ofRows(Dataset.scala:95)
at org.apache.spark.sql.SparkSession.$anonfun$sql$1(SparkSession.scala:640)
at org.apache.spark.sql.SparkSession.withActive(SparkSession.scala:827)
at org.apache.spark.sql.SparkSession.sql(SparkSession.scala:630)
at org.apache.spark.sql.SparkSession.sql(SparkSession.scala:662)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.base/java.lang.reflect.Method.invoke(Method.java:572)
at py4j.reflection.MethodInvoker.invoke(MethodInvoker.java:244)
at py4j.reflection.ReflectionEngine.invoke(ReflectionEngine.java:374)
at py4j.Gateway.invoke(Gateway.java:282)
at py4j.commands.AbstractCommand.invokeMethod(AbstractCommand.java:132)
at py4j.commands.CallCommand.execute(CallCommand.java:79)
at py4j.ClientServerConnection.waitForCommands(ClientServerConnection.java:182)
at py4j.ClientServerConnection.run(ClientServerConnection.java:106)
at java.base/java.lang.Thread.run(Thread.java:839)

(python) bash-5.1$