text: import os
  
  import pandas as pd
  import numpy as np
  from .._reader import FormatReader
  
  
  class TableCSVServiceBuilder:
      """Service builder for the tablecsv reader"""
  
      def __init__(self):
          self._instance = None
  
      def __call__(self, **_ignored):
          if not self._instance:
              self._instance = TableCSVReaderService()
          return self._instance
  
  
  class TableCSVReaderService(FormatReader):
      """Reader for Tiff images
  
      """
      def __init__(self):
          super().__init__()
  
      @staticmethod
      def read(filename):
          return pd.read_csv(filename)
  
  
  class ArrayCSVServiceBuilder:
      """Service builder for the arraycsv reader"""
  
      def __init__(self):
          self._instance = None
  
      def __call__(self, **_ignored):
          if not self._instance:
              self._instance = ArrayCSVReaderService()
          return self._instance
  
  
  class ArrayCSVReaderService(FormatReader):
      """Reader for Tiff images
  
      """
      def __init__(self):
          super().__init__()
  
      @staticmethod
      def read(filename):
          return pd.read_csv(filename, nrows=1)
  
  
  class NumberCSVServiceBuilder:
      """Service builder for the numbercsv reader"""
  
      def __init__(self):
          self._instance = None
  
      def __call__(self, **_ignored):
          if not self._instance:
              self._instance = NumberCSVReaderService()
          return self._instance
  
  
  class NumberCSVReaderService(FormatReader):
      """Reader for Tiff images
  
      """
      def __init__(self):
          super().__init__()
  
      @staticmethod
      def read(filename):
          return pd.read_csv(filename, nrows=1)    
                