func (cb *ContextBuilder) SetFormat(f Format) *ContextBuilder {
	if cb.CallOptions == nil {
		cb.CallOptions = new(CallOptions)
	}
	cb.CallOptions.Format = f
	return cb
}
func (cb *ContextBuilder) SetFormat(f Format) *ContextBuilder {
	if cb.CallOptions == nil {
		cb.CallOptions = new(CallOptions)
	}
	cb.CallOptions.Format = f
	return cb
}
func ( cb * ContextBuilder ) SetFormat ( f Format ) * ContextBuilder { if cb . CallOptions == nil { cb . CallOptions = new ( CallOptions ) } cb . CallOptions . Format = f return cb }
// SetFormat sets the Format call option ("as" transport header).
SetFormat sets the Format call option ( as transport header ) .