How to use the @webassemblyjs/wasm-gen/lib/encoder.encodeU32 function in @webassemblyjs/wasm-gen

Func({ node }) {
        const funcHasThisIntr =
          node.body.find(n => n === newNode) !== undefined;

        // Update func's body size if needed
        if (funcHasThisIntr === true) {
          // These are the old functions locations informations
          assertHasLoc(node);

          const oldNodeSize = encodeNode(oldNode).length;
          const bodySizeDeltaBytes = replacementByteArray.length - oldNodeSize;

          if (bodySizeDeltaBytes !== 0) {
            const newValue = node.metadata.bodySize + bodySizeDeltaBytes;
            const newByteArray = encodeU32(newValue);

            // function body size byte
            // FIXME(sven): only handles one byte u32
            const start = node.loc.start.column;
            const end = start + 1;

            uint8Buffer = overrideBytesInBuffer(
              uint8Buffer,
              start,
              end,
              newByteArray
            );
          }
        }
      }
    });

Func: function Func(_ref3) {
        var node = _ref3.node;
        var funcHasThisIntr = node.body.find(function (n) {
          return n === newNode;
        }) !== undefined; // Update func's body size if needed

        if (funcHasThisIntr === true) {
          // These are the old functions locations informations
          assertHasLoc(node);
          var oldNodeSize = encodeNode(oldNode).length;
          var bodySizeDeltaBytes = replacementByteArray.length - oldNodeSize;

          if (bodySizeDeltaBytes !== 0) {
            var newValue = node.metadata.bodySize + bodySizeDeltaBytes;
            var newByteArray = encodeU32(newValue); // function body size byte
            // FIXME(sven): only handles one byte u32

            var start = node.loc.start.column;
            var end = start + 1;
            uint8Buffer = overrideBytesInBuffer(uint8Buffer, start, end, newByteArray);
          }
        }
      }
    });

Func: function Func(_ref3) {
        var node = _ref3.node;
        var funcHasThisIntr = node.body.find(function (n) {
          return n === newNode;
        }) !== undefined; // Update func's body size if needed

        if (funcHasThisIntr === true) {
          // These are the old functions locations informations
          assertHasLoc(node);
          var oldNodeSize = encodeNode(oldNode).length;
          var bodySizeDeltaBytes = replacementByteArray.length - oldNodeSize;

          if (bodySizeDeltaBytes !== 0) {
            var newValue = node.metadata.bodySize + bodySizeDeltaBytes;
            var newByteArray = encodeU32(newValue); // function body size byte
            // FIXME(sven): only handles one byte u32

            var start = node.loc.start.column;
            var end = start + 1;
            uint8Buffer = overrideBytesInBuffer(uint8Buffer, start, end, newByteArray);
          }
        }
      }
    });

Func({ node }) {
        const funcHasThisIntr =
          node.body.find(n => n === newNode) !== undefined;

        // Update func's body size if needed
        if (funcHasThisIntr === true) {
          // These are the old functions locations informations
          assertHasLoc(node);

          const oldNodeSize = encodeNode(oldNode).length;
          const bodySizeDeltaBytes = replacementByteArray.length - oldNodeSize;

          if (bodySizeDeltaBytes !== 0) {
            const newValue = node.metadata.bodySize + bodySizeDeltaBytes;
            const newByteArray = encodeU32(newValue);

            debug("resize func body newValue=%d", newValue);

            // function body size byte
            // FIXME(sven): only handles one byte u32
            const start = node.loc.start.column;
            const end = start + 1;

            uint8Buffer = overrideBytesInBuffer(
              uint8Buffer,
              start,
              end,
              newByteArray
            );
          }
        }

SectionMetadata({ node }) {
      /**
       * Section size
       */
      {
        const newu32Encoded = encodeU32(node.size.value);
        const newu32EncodedLen = newu32Encoded.length;

        const start = node.size.loc.start.column;
        const end = node.size.loc.end.column;

        const oldu32EncodedLen = end - start;

        if (newu32EncodedLen !== oldu32EncodedLen) {
          const deltaInSizeEncoding = oldu32EncodedLen - newu32EncodedLen;

          debug(
            "found LEB128 encoding size delta section=%s detla=%s",
            node.section,
            deltaInSizeEncoding
          );

SectionMetadata: function SectionMetadata(_ref2) {
      var node = _ref2.node;

      /**
       * Section size
       */
      {
        var newu32Encoded = encodeU32(node.size.value);
        var newu32EncodedLen = newu32Encoded.length;
        var start = node.size.loc.start.column;
        var end = node.size.loc.end.column;
        var oldu32EncodedLen = end - start;

        if (newu32EncodedLen !== oldu32EncodedLen) {
          var deltaInSizeEncoding = oldu32EncodedLen - newu32EncodedLen;
          uint8Buffer = overrideBytesInBuffer(uint8Buffer, start, end, newu32Encoded);
          shiftFollowingSections(ast, node, -deltaInSizeEncoding);
        }
      }
    }
  });