**Is your feature request related to a problem? Please describe.**
A clear and concise description of what the problem is. Ex. I'm always frustrated when [...]

**Describe the solution you'd like**
A clear and concise description of what you want to happen. Ex. I would like to use PySTAC to do [...]

**Describe alternatives you've considered**
A clear and concise description of any alternative solutions or features you've considered.

**PySTAC version**
Include your PySTAC version in case a similar feature already exists in a newer or pre-release version.

**Additional context**
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