code: def get_table_columns(self, table_name):
      return self.project.get_columns(table_name)
  
file_path: mindsdb/mindsdb/api/executor/datahub/datanodes/project_datanode.py
imports: from copy import deepcopy
  import pandas
  from mindsdb_sql import parse_sql
  from mindsdb_sql.parser.ast import BinaryOperation, Identifier, Constant, Update, Select, Delete
  from mindsdb.utilities.exception import EntityNotExistsError
  from mindsdb.api.executor.datahub.datanodes.datanode import DataNode
  from mindsdb.api.executor.datahub.classes.tables_row import TablesRow
  from mindsdb.api.executor import SQLQuery
  from mindsdb.api.executor.utilities.sql import query_df
  from mindsdb.interfaces.query_context.context_controller import query_context_controller
label_desc: Use image node_id 5 for calling the ProjectDataNode obj's underlying member method code with example usage: obj.get_table_columns(table_name) and returns: self