fix doc tests and docs

subxt/src/lib.rs

@@ -72,7 +72,7 @@ pub use subxt_core::{
     config, dynamic, metadata, signed_extensions, AccountId32, BlockHash, ClientBase, Config,
     DecodedValue, DecodedValueThunk, ExtrinsicParams, ExtrinsicParamsEncoder, Hasher, Header,
     Metadata, MultiAddress, PolkadotConfig, PolkadotExtrinsicParams, RuntimeVersion, Signer,
-    StorageAddress, SubstrateConfig, SubstrateExtrinsicParams,
+    StorageAddress, SubstrateConfig, SubstrateExtrinsicParams
 };
 
 /// Re-export external crates that are made use of in the subxt API.

subxt/src/tx/mod.rs

@@ -21,5 +21,6 @@ pub use self::{
 };
 pub use subxt_core::{
     signer::Signer,
+    tx,
     tx::{dynamic, BoxedPayload, DynamicPayload, Payload, TxPayload},
 };

subxt/src/utils.rs

@@ -6,7 +6,7 @@
 
 pub use subxt_core::utils::{
     bits, strip_compact_prefix, to_hex, AccountId32, KeyedVec, MultiAddress, MultiSignature,
-    UncheckedExtrinsic, Yes, H160, H256, H512,
+    UncheckedExtrinsic, Yes, H160, H256, H512, Era,Static,
 };
 
 use url::Url;