Optional hField supported by mdast-util-to-hast to signal that a node should
result in something with these children.
When this is defined, when a parent is created, these children will be used.
Optional hField supported by mdast-util-to-hast to signal that a node should
result in a particular element, instead of its default behavior.
When this is defined, an element with the given tag name is created.
For example, when setting hName to 'b', a <b> element is created.
Optional hField supported by mdast-util-to-hast to signal that a node should
result in an element with these properties.
When this is defined, when an element is created, these properties will be used.
Info associated with mdast paragraph nodes by the ecosystem.