v1.2.0

Features

• App now takes an optional parameter default_parameter: Parameter that allows the configuration of what values a default Parameter uses. Parameters now have a resolution order for determining configuration values. Basically it goes (highest-to-lowest priority)annotated parameter -> parenting app default -> parenting-parenting app default -> .... by @BrianPugh in #33
• New classmethod Parameter.combine which can construct a new, single, Parameter from multiple Parameters.
• New classmethod Parameter.default which is similar to Parameter(), but it will override all parenting Parameters.
• App and Parameter's repr strings have been greatly simplified to only include non-default supplied parameters.

Bug Fixes

• conditionally import typing_extensions by @BrianPugh in #34
• use importlib.metadata to check distribution version. by @BrianPugh in #36
• Handle mutable signature parameter defaults. by @BrianPugh in #37

Breaking Changes

This release technically contains some breaking changes, but realistically no-one should be impacts.

• Removed MultipleParameterAnnotationError; we now handle multiple Parameter resolution. Specifically, for mutliple Parameter in an Annotated, they are evaluated left->right (right-most has highest precedence/priority).
• All of Parameter's defaults are now None. No change in default functionality.

Full Changelog: v1.1.1...v1.2.0