Vamos ver tudo isso com um exemplo.

Imagine que você desenvolve um aplicativo que permite criar faturas.

Essas faturas terão um `id`, `title` (opcional), `customer` e `total`.

O usuário da sua API (um desenvolvedor externo) criará uma fatura na sua API com um request POST.

Então sua API irá (vamos imaginar):

* Enviar a fatura para algum cliente do desenvolvedor externo.

            total = settings.size();
            return this;
        }

        /**
         * Sets the total number of configuration settings.
         * @param total The total number of configuration settings.
         * @return The ApiConfigsResponse instance.
         */
        public ApiConfigsResponse<T> total(final long total) {
            this.total = total;
            return this;

                        <phase>process-sources</phase>
                        <goals>
                            <goal>compile</goal>
                        </goals>
                    </execution>
                    <execution>
                        <id>test-compile</id>
                        <phase>process-test-sources</phase>
                        <goals>
                            <goal>test-compile</goal>

        <executions>
          <execution>
            <id>unpack-failureaccess-sources</id>
            <phase>generate-resources</phase>
            <goals><goal>unpack-dependencies</goal></goals>
            <configuration>
              <includeArtifactIds>failureaccess</includeArtifactIds>
              <classifier>sources</classifier>
              <excludeTransitive>true</excludeTransitive>

                            "title": "Event",
                            "required": ["name", "total"],
                            "type": "object",
                            "properties": {
                                "name": {"title": "Name", "type": "string"},
                                "total": {"title": "Total", "type": "number"},
                            },
                        },

    <plugins>
      <plugin>
        <artifactId>maven-enforcer-plugin</artifactId>
        <executions>
          <execution>
            <id>enforce-versions</id>
            <goals>
              <goal>enforce</goal>
            </goals>
            <configuration>
              <rules>
                <requireMavenVersion>
                  <version>3.0.5</version>
                </requireMavenVersion>

        this.completionTokens = completionTokens;
    }

    /**
     * Gets the total number of tokens.
     *
     * @return the total tokens count
     */
    public Integer getTotalTokens() {
        return totalTokens;
    }

    /**
     * Sets the total number of tokens.
     *
     * @param totalTokens the total tokens count
     */
    public void setTotalTokens(final Integer totalTokens) {

    }
    checkPositionIndexes(off, off + len, b.length);
    int total = 0;
    while (total < len) {
      int result = in.read(b, off + total, len - total);
      if (result == -1) {
        break;
      }
      total += result;
    }
    return total;
  }

  /** Compares the contents of the two {@link InputStream}s for equality. */

        String details = testableJob.testFormatDetails(events);

        assertNotNull(details);
        assertTrue(details.contains("Total: 1 event(s)"));
        assertTrue(details.contains("ERROR"));
        assertTrue(details.contains("org.codelibs.fess.TestClass"));
        assertTrue(details.contains("Something went wrong"));
    }

    @Test

    for (Construction<T> pathway : constructions) {
      smallCounter.zero();
      pathway.create(haveSameHashesSmall);
      long smallOps = smallCounter.total();

      largeCounter.zero();
      pathway.create(haveSameHashesLarge);
      long largeOps = largeCounter.total();

      double ratio = (double) largeOps / smallOps;
      assertWithMessage(