log/field.go
func Float32(key string, val float32) Field {
	return Field{
		key:        key,
		fieldType:  float32Type,
		numericVal: int64(math.Float32bits(val)),
	}
}
func Float32(key string, val float32) Field {
	return Field{
		key:        key,
		fieldType:  float32Type,
		numericVal: int64(math.Float32bits(val)),
	}
}
func Float32 ( key string , val float32 ) Field { return Field { key : key , fieldType : float32Type , numericVal : int64 ( math . Float32bits ( val ) ) , } }
// Float32 adds a float32-valued key:value pair to a Span.LogFields() record
Float32 adds a float32 - valued key : value pair to a Span . LogFields () record