text: import numpy as np
  from dask.dataframe.core import DataFrame
  
  
  def constants(self):
      class Constants:
          DTYPES_DICT = {"string": np.str, "uint8": np.uint8, "uint16": np.uint16, "uint32": np.uint32,
                         "uint64": np.uint64, "int8": np.int8, "int16": np.int16, "int32": np.int32, "int64": np.int64,
                         "float": np.float, "float64": np.float64, "boolean": np.bool, "array": np.array,
                         "bigint": np.int64, "object": np.object_}
  
          SHORT_DTYPES = {"string": "string",
                          "str": "string",
                          "integer": "int",
                          "int": "int",
  
                          "uint8": "uint8",
                          "uint16": "uint16",
                          "uint32": "uint32",
                          "uint64": "uint64",
                          "int8": "int8",
                          "int16": "int16",
                          "int32": "int32",
                          "int64": "int64",
  
                          "float64": "float64",
                          "big": "bigint",
                          "long": "bigint",
                          "float": "float",
                          "double": "double",
                          "bool": "boolean",
                          "boolean": "boolean",
                          "struct": "struct",
                          "array": "array",
                          "date": "date",
                          "datetime": "datetime",
                          "byte": "byte",
                          "short": "short",
                          "binary": "binary",
                          "null": "null",
                          "vector": "vector",
                          "timestamp": "datetime",
                          "object": "object"
                          }
  
          NUMERIC_TYPES = ["int8", "int16", "int32", "int64", "uint8", "uint16", "uint32", "uint64", "float64"]
          DTYPES_TO_PROFILER = {"int": ["int64", "int32"], "float": ["float64", "float"], "object": ["object"]}
  
          STRING_TYPES = ["string", "object"]
          OBJECT_TYPES = ["object"]
  
      return Constants()
  
  
  STARTING_DASK = "Starting or setting Dask Client..."
  DataFrame.constants = property(constants)
  