fix import

ChihChengLiang · ChihChengLiang · commit 3b7e2bb0c7cc · 2018-12-29T02:06:45.000+08:00
diff --git a/eth/beacon/types/proposer_slashings.py b/eth/beacon/types/proposer_slashings.py
@@ -9,6 +9,7 @@
 from .proposal_signed_data import ProposalSignedData
 from eth.beacon.typing import (
     BLSSignature,
+    ValidatorIndex,
 )
 from eth.beacon.constants import EMPTY_SIGNATURE
 

Original file line number	Diff line number	Diff line change
`@@ -9,6 +9,7 @@`
`9`	`9`	`from .proposal_signed_data import ProposalSignedData`
`10`	`10`	`from eth.beacon.typing import (`
`11`	`11`	`BLSSignature,`
	`12`	`+ ValidatorIndex,`
`12`	`13`	`)`
`13`	`14`	`from eth.beacon.constants import EMPTY_SIGNATURE`
`14`	`15`