Build and run a block

Here's a simple example of building and running a test block:

operation foo(x: integer) { ... }
operation bar(s: text) { ... }

...

val tx1 = rell.test.tx()
    .op(foo(123))                           // operation call returns rell.test.op
    .op(bar('ABC'))                         // now the transaction has two operations
    .sign(rell.test.keypairs.bob)           // signing with the "Bob" test keypair
    ;

val tx2 = rell.test.tx()
    .op(bar('XYZ'))
    .sign(rell.test.keypairs.bob)
    .sign(rell.test.keypairs.alice)         // tx2 is signed with both "Bob" and "Alice" keypairs
    ;

rell.test.block()
    .tx(tx1)
    .tx(tx2)
    .run()                                  // execute the block consisting of two transactions: tx1 and tx2
    ;