text: from pipelines.schema import Schema
  
  sample_features_metadata = [
      dict(name = 'feature1',
          dtype = int,
          type = 'input',
          range=(1, 10)
      ),
      dict(name = 'feature2',
          dtype = float,
          type = 'input',
          range = (0.0, 99.9)
      ),
      dict(name = 'feature3',
          dtype = str,
          type = 'input',
      ),
      dict(name = 'feature4',
          dtype = str,
          type = 'input',
          categories = ['a', 'e', 'i', 'o', 'u']
      ),
      dict(name = 'target',
          dtype = str,
          type = 'target'
      ),
      dict(name = 'feature1_log',
          dtype = str,
          non_negative = True
      )
  ]
  
  sample_schema = Schema(sample_features_metadata)
  