code: def datasources(dask_client, nRals):
      for fileSchemaType in data_types:
          if skip_test(dask_client, nRals, fileSchemaType, queryType):
              continue
          yield fileSchemaType
  
file_path: blazingsql/tests/BlazingSQLTest/EndToEndTests/oldScripts/tablesFromSQL.py
imports: from collections import OrderedDict
  from blazingsql import DataType
  from DataBase import createSchema
  from Configuration import ExecutionMode
  from Configuration import Settings
  from Runner import runTest
  from Utils import gpuMemory, skip_test
  from EndToEndTests.oldScripts import tpchQueries
label_desc: Use image node_id 2 for calling a global function with example usage: datasources(dask_client, nRals) without return types