#### `HeroBase` - the base class { #herobase-the-base-class }

Let's start with a `HeroBase` model that has all the **fields that are shared** by all the models:

* `name`
* `age`

{* ../../docs_src/sql_databases/tutorial002_an_py310.py ln[7:9] hl[7:9] *}

#### `Hero` - the *table model* { #hero-the-table-model }

    extends AbstractMap<K, V> implements Serializable {
  /*
   * TODO: Make this a drop-in replacement for j.u. versions, actually drop them in, and test the
   * world. Figure out what sort of space-time tradeoff we're actually going to get here with the
   * *Map variants. This class is particularly hard to benchmark, because the benefit is not only in

statute, judicial order, or regulation then You must: (a) comply with
the terms of this License to the maximum extent possible; and (b)
describe the limitations and the code they affect. Such description must
be placed in a text file included with all distributions of the Covered
Software under this License. Except to the extent prohibited by statute
or regulation, such description must be sufficiently detailed for a

	lastBlockSize := totalLength % e.BlockSize
	lastShardSize := ceilFrac(lastBlockSize, int64(e.DataBlocks))
	return numShards*e.ShardSize() + lastShardSize
}

// ShardSize - returns actual shared size from erasure blockSize.
func (e ErasureInfo) ShardSize() int64 {
	return ceilFrac(e.BlockSize, int64(e.DataBlocks))
}

// IsValid - tells if erasure info fields are valid.
func (fi FileInfo) IsValid() bool {

<setting id="org.eclipse.wst.jsdt.core.formatter.blank_lines_before_new_chunk" value="1"/>
<setting id="org.eclipse.wst.jsdt.core.formatter.tabulation.char" value="space"/>
<setting id="org.eclipse.wst.jsdt.core.formatter.put_empty_statement_on_new_line" value="true"/>
<setting id="org.eclipse.wst.jsdt.core.formatter.insert_space_after_opening_paren_in_enum_constant" value="do not insert"/>

<setting id="org.eclipse.jdt.core.formatter.insert_new_line_before_finally_in_try_statement" value="do not insert"/>
<setting id="org.eclipse.jdt.core.formatter.tabulation.char" value="space"/>
<setting id="org.eclipse.jdt.core.formatter.insert_space_before_comma_in_multiple_field_declarations" value="do not insert"/>
<setting id="org.eclipse.jdt.core.formatter.blank_lines_between_import_groups" value="1"/>

            readBuffer.writeAll(receiveBuffer)
            if (wasEmpty) {
              notifyAll()
            }
          }
        }
      }

      // Update the connection flow control, as this is a shared resource.
      // Even if our stream doesn't need more data, others might.
      // But delay updating the stream flow control until that stream has been
      // consumed
      updateConnectionFlowControl(byteCount)

 * <a href="https://en.wikipedia.org/wiki/ANSI_escape_code#CSI_sequences">ANSI escape sequences</a>.
 *
 * This class comes from Jansi and is provided for backward compatibility
 * with maven-shared-utils, while Maven has migrated to JLine (into which Jansi has been merged
 * since JLine 3.25.0).
 */
@Deprecated
@SuppressWarnings("unused")
public class Ansi implements Appendable {

      if (typeVariableMethod == null) {
        if (methodName.equals("getAnnotatedBounds")
            || methodName.equals("isAnnotationPresent")
            // Each of these prefixes is shared by a family of methods:
            || methodName.startsWith("getAnnotation")
            || methodName.startsWith("getDeclaredAnnotation")) {
          throw new UnsupportedOperationException(

				// Support (R1)(R2) (no scaling) and (R1)(R2*1).
				p.errorf("%s doesn't support scaled register format", p.arch.Name)
			} else {
				a.Scale = int16(scale)
			}
		}
		p.get(')')
	} else if scale != 0 {
		if p.arch.Family == sys.ARM64 {
			p.errorf("arm64 doesn't support scaled register format")
		}
		// First (R) was missing, all we have is (R*scale).
		a.Reg = 0