"Unable to validate credentials inherited from the secret file(s)")
		}
		if accessKey != "" {
			os.Setenv(config.EnvRootUser, accessKey)
		}
	}

	if env.IsSet(config.EnvSecretKeyFile) {
		secretKey, err := readFromSecret(env.Get(config.EnvSecretKeyFile, ""))
		if err != nil {
			logger.Fatal(config.ErrInvalidCredentials(err),
				"Unable to validate credentials inherited from the secret file(s)")
		}

}

// IsImpliedPolicy - returns if the policy is implied via ParentUser or not.
func (cred Credentials) IsImpliedPolicy() bool {
	if cred.IsServiceAccount() {
		return cred.Claims[iamPolicyClaimNameSA] == "inherited-policy"
	}
	return false
}

// IsValid - returns whether credential is valid or not.
func (cred Credentials) IsValid() bool {
	// Verify credentials if its enabled or not set.

      }
      entriesUsed = true;
      return new RegularImmutableBiMap<K, V>(alternatingKeysAndValues, size);
    }

    /**
     * Throws {@link UnsupportedOperationException}. This method is inherited from {@link
     * ImmutableMap.Builder}, but it does not make sense for bimaps.
     *
     * @throws UnsupportedOperationException always

	if err != nil {
		writeSTSErrorResponse(ctx, w, ErrSTSInternalError, err)
		return
	}

	// Set the parent of the temporary access key, so that it's access
	// policy is inherited from `user.AccessKey`.
	cred.ParentUser = user.AccessKey

	// Set the newly generated credentials.
	updatedAt, err := globalIAMSys.SetTempUser(ctx, cred.AccessKey, cred, "")
	if err != nil {

   * <p>For <i>small</i> immutable maps, the {@code ImmutableMap.of()} methods are even more
   * convenient.
   *
   * <p>By default, a {@code Builder} will generate maps that iterate over entries in the order they
   * were inserted into the builder, equivalently to {@code LinkedHashMap}. For example, in the
   * above example, {@code WORD_TO_INT.entrySet()} is guaranteed to iterate over the entries in the

    }

    /**
     * Returns an {@code ImmutableRangeMap} containing the associations previously added to this
     * builder.
     *
     * @throws IllegalArgumentException if any two ranges inserted into this builder overlap
     */
    public ImmutableRangeMap<K, V> build() {
      Collections.sort(entries, Range.<K>rangeLexOrdering().onKeys());

```Python hl_lines="1"
{!../../../docs_src/first_steps/tutorial001.py!}
```

`FastAPI` is a Python class that provides all the functionality for your API.

!!! note "Technical Details"
    `FastAPI` is a class that inherits directly from `Starlette`.

    You can use all the <a href="https://www.starlette.io/" class="external-link" target="_blank">Starlette</a> functionality with `FastAPI` too.

### Step 2: create a `FastAPI` "instance"

     * merged, but overlapping ranges will cause an exception when {@link #build()} is called.
     *
     * @throws IllegalArgumentException if any inserted ranges are empty
     * @since 21.0
     */
    @CanIgnoreReturnValue
    public Builder<C> addAll(Iterable<Range<C>> ranges) {
      for (Range<C> range : ranges) {
        add(range);
      }

				found = append(found, key)
				return true
			})
			t.Errorf("expected no active streams, got %d outgoing: %v", stats.OutgoingStreams, found)
		}
		return
	}
}

// Inserted manually.
func _() {
	// An "invalid array index" compiler error signifies that the constant values have changed.
	// Re-run the stringer command to generate them again.
	var x [1]struct{}