error: Missing `Block` generic parameter.
  --> $DIR/missing_block_generic_parameter.rs:19:13
   |
19 |     impl self::Api for Runtime {
   |                ^^^

error[E0107]: wrong number of type arguments: expected 1, found 0
  --> $DIR/missing_block_generic_parameter.rs:19:7
   |
19 |     impl self::Api for Runtime {
   |          ^^^^^^^^^ expected 1 type argument

For more information about this error, try `rustc --explain E0107`.
