text: """ **Description**
          Forward coefficient interface.
  
      **Example**
          
          ::
          
              from diamondback import IB
              import numpy
  
              class Test( IB ) :
  
                  def __init__( self ) -> None :
                      super( ).__init__( )
                      self.b = numpy.array( [ 0.75, 0.25 ] )
  
              test = Test( )
              test.b[ : ] = 0.5
  
      **License**
          `BSD-3C.  <https://github.com/larryturner/diamondback/blob/master/license>`_
          © 2018 - 2021 Larry Turner, Schneider Electric Industries SAS. All rights reserved.
  
      **Author**
          Larry Turner, Schneider Electric, Analytics & AI, 2018-01-31.
  """
  
  from typing import Any, List, Union
  import numpy
  
  class IB( object ) :
  
      """ Forward coefficient interface.
      """
  
      @property
      def b( self ) :
  
          """ b : Union[ List, numpy.ndarray ] - forward coefficient.
          """
  
          return self._b
  
      @b.setter
      def b( self, b : Union[ List, numpy.ndarray ] ) :
  
          self._b = b
  
      def __init__( self ) -> None :
  
          """ Initialize.
          """
  
          super( ).__init__( )
          self._b = [ ]
  