parameters: (self, b)
return_statement: return self._readinto(b, read1=False)
docstring: Read bytes into a pre-allocated bytes-like object b.
  
          Like read(), this may issue multiple reads to the underlying raw
          stream, unless the latter is 'interactive'.
  
          Returns an int representing the number of bytes read (0 for EOF).
  
          Raises BlockingIOError if the underlying raw stream has no
          data at the moment.
docstring_summary: Read bytes into a pre-allocated bytes-like object b.
docstring_tokens: Read bytes into a pre - allocated bytes - like object b .
function: def readinto(self, b):
          """Read bytes into a pre-allocated bytes-like object b.
  
          Like read(), this may issue multiple reads to the underlying raw
          stream, unless the latter is 'interactive'.
  
          Returns an int representing the number of bytes read (0 for EOF).
  
          Raises BlockingIOError if the underlying raw stream has no
          data at the moment.
          """
  
          return self._readinto(b, read1=False)
function_tokens: def readinto ( self , b ) : return self . _readinto ( b , read1 = False )