code: func (b *BigIP) ModifyBGPNeighbor(instance, name string, config *BGPNeighbor) error {
  	return b.put(config, uriNet, uriRouting, uriBGP, instance, uriNeighbor, name)
  }
docs: // ModifyBGPNeighbor allows you to change any attribute of a BGP neighbor of a BGP instance.
  // Fields that can be modified are referenced in the BGPNeighbor struct.