log/field.go
func Int32(key string, val int32) Field {
	return Field{
		key:        key,
		fieldType:  int32Type,
		numericVal: int64(val),
	}
}
func Int32(key string, val int32) Field {
	return Field{
		key:        key,
		fieldType:  int32Type,
		numericVal: int64(val),
	}
}
func Int32 ( key string , val int32 ) Field { return Field { key : key , fieldType : int32Type , numericVal : int64 ( val ) , } }
// Int32 adds an int32-valued key:value pair to a Span.LogFields() record
Int32 adds an int32 - valued key : value pair to a Span . LogFields () record