Retrieves the value of an environment variable by using its schema name as key.
If the environment variable has both a default value and a current value, this function will retrieve the current value.
Parameters
environmentVariableSchemaName: string
The schema name of the environment variable to retrieve.
Returns Promise<string>
A promise that resolves with the value of the environment variable.
Retrieves the value of an environment variable by using its schema name as key. If the environment variable has both a default value and a current value, this function will retrieve the current value.