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-rw-r--r--packages/contracts/src/2.0.0/protocol/Exchange/interfaces/ISignatureValidator.sol1
1 files changed, 1 insertions, 0 deletions
diff --git a/packages/contracts/src/2.0.0/protocol/Exchange/interfaces/ISignatureValidator.sol b/packages/contracts/src/2.0.0/protocol/Exchange/interfaces/ISignatureValidator.sol
index 511463309..c5a4a57e1 100644
--- a/packages/contracts/src/2.0.0/protocol/Exchange/interfaces/ISignatureValidator.sol
+++ b/packages/contracts/src/2.0.0/protocol/Exchange/interfaces/ISignatureValidator.sol
@@ -18,6 +18,7 @@
pragma solidity ^0.4.24;
+
contract ISignatureValidator {
/// @dev Approves a hash on-chain using any valid signature type.